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Differential Cover GM 8.5″/8.6″ 10 Bolts Rear Axle | SPELAB
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Differential Cover GM 8.5″/8.6″ 10 Bolts Rear Axle | SPELAB

Differential Cover GM 8.5″/8.6″ 10 Bolts Rear Axle | SPELAB

---tab Description---


Differential Cover GM 8.5″/8.6″ 10 Bolts Rear Axle | SPELAB

Differential Cover For AAM 11.5"/11.8″ 14 Bolts Rear Axle | SPELAB-4

Function:

Protects the differential, seals the differential, stores differential fluid.

Fitment:

  • 1999-2000 | Cadillac Escalade
  • 1970-1975 | Chevrolet Bel Air
  • 1970-1981 | Chevrolet Camaro
  • 1970-1996 | Chevrolet Caprice
  • 1971-1976 | Chevrolet El Camino
  • 1971-1996 | Chevrolet Impala
  • 1973-1983 | Chevrolet Malibu
  • 1973-1978 | Chevrolet Monte Carlo
  • 1970-1979 | Chevrolet Nova
  • 1977-1994 | Chevrolet Blazer Front
  • 1977-1991 | Chevrolet K5 Blazer Front
  • 1979-1987 | Chevrolet C10
  • 1988-1999 | Chevrolet C1500
  • 1975-1995 | Chevrolet G20
  • 1979-1999 | Chevrolet K10/ K1500
  • 1994-2000 | Chevrolet S10 Blazer / Pickup
  • 1979-2000 | Chevrolet Suburban
  • 1995-1998 | Chevrolet Tahoe 1500
  • 1996-2003 | Chevrolet Express Van 1500
  • 1973-1975 | Buick Apollo
  • 1971-1989 | Buick Electra
  • 1973-1987 | Buick Regal RWD
  • 1975-1978 | Buick Riviera RWD
  • 1970-1979 | Buick Skylark
  • 1968-1968 | Oldsmobile 442
  • 1970-1987 | Oldsmobile Cutlass
  • 1973-1979 | Oldsmobile Omega
  • 1970-1986 | Pontiac Bonneville
  • 1965-1981 | Pontiac Catalina
  • 1970-1981 | Pontiac Firebird
  • 1965-1977 | Pontiac GTO
  • 1971-1987 | Pontiac Grand Prix>
  • 1964-1983 | Pontiac LeMans
  • 1970-1981 | Pontiac Trans Am
  • 1976-1977 | Pontiac Ventura
  • 1978-1979 | Plymouth Phoenix
  • 1988-1999 | GMC C15/ C1500
  • 1979-1995 | GMC G15/ G1500
  • 1978-1995 | GMC G25/ G2500
  • 1979-1999 | GMC K15/ K1500
  • 1979-1997 | GMC C15/ C1500
  • 1996-2003 | GMC Savana 1500
  • 1996-1998 | GMC Savana 2500
  • 1994-1998 | GMC Sonoma
  • 1979-2000 | GMC Suburban
  • 1994-2000 | GMC S15 Jimmy / Pickup
  • 1992-1993 | GMC Typhoon>
  • 1992-2000 | GMC Yukon 1500

Note: The year and model may not guarantee compatibility. Please confirm whether the axle is GM 8.5″/8.6″ 10 Bolts.

Differential Cover GM 8.5″/8.6″ 10 Bolts Rear Axle | SPELAB-85

Innovative points:

1. The external heat sink design increases the contact area between the differential cover and the surrounding air, enhancing heat dissipation performance.

2. The internal diversion groove design aligns with the direction of liquid flow in the differential gear's rotation, ensuring maximum flow rate for better lubrication.

3. The use of aluminum alloy material significantly improves cooling performance compared to the commonly used iron material. When comparing billet to cast products, billet items are often considered more durable and built for long-lasting performance.

4. An external observation mirror with a floating ball is used to monitor the oil level. Traditional observation mirrors in the market may darken over time, reducing visibility. Therefore, the floating ball allows us to monitor the oil level even if the mirror darkens.

5. The outside with black wrinkle paint providing rust resistance.

       Specifications:

      Differential Cover Kit For 8.5 in. GM With 5/16 in. Cover Bolts Size |SPELAB
      Differential Cover Kit 5/16 in. 12 Bolts |SPELAB-1
      Differential Cover Kit 5/16 in. 12 Bolts |SPELAB-2
      Differential Cover Kit For 8.5 in. GM With 5/16 in. Cover Bolts Comparison |SPELAB

      Shipping

      • Fast Shipping Policy:

        The order will be dispatched within 1-2 business day, and the package will arrive within your order's estimated date. Please click Shipping Policy for more details.
      • Easy Return Policy:

        Every order comes with a 14-day free return which means you don't have to pay for a return slip. Please click Return Policy for more details.

      ---tab Fitment---

      Fitment:

      1999-2000 | Cadillac Escalade
      1970-1975 | Chevrolet Bel Air
      1970-1981 | Chevrolet Camaro
      1970-1996 | Chevrolet Caprice
      1971-1976 | Chevrolet El Camino
      1971-1996 | Chevrolet Impala
      1973-1983 | Chevrolet Malibu
      1973-1978 | Chevrolet Monte Carlo
      1970-1979 | Chevrolet Nova
      1977-1994 | Chevrolet Blazer Front
      1977-1991 | Chevrolet K5 Blazer Front
      1979-1987 | Chevrolet C10
      1988-1999 | Chevrolet C1500
      1975-1995 | Chevrolet G20
      1979-1999 | Chevrolet K10/ K1500
      1994-2000 | Chevrolet S10 Blazer / Pickup
      1979-2000 | Chevrolet Suburban
      1995-1998 | Chevrolet Tahoe 1500
      1996-2003 | Chevrolet Express Van 1500
      1973-1975 | Buick Apollo
      1971-1989 | Buick Electra
      1973-1987 | Buick Regal RWD
      1975-1978 | Buick Riviera RWD
      1970-1979 | Buick Skylark
      1968-1968 | Oldsmobile 442
      1970-1987 | Oldsmobile Cutlass
      1973-1979 | Oldsmobile Omega
      1970-1986 | Pontiac Bonneville
      1965-1981 | Pontiac Catalina
      1970-1981 | Pontiac Firebird
      1965-1977 | Pontiac GTO
      1971-1987 | Pontiac Grand Prix>
      1964-1983 | Pontiac LeMans
      1970-1981 | Pontiac Trans Am
      1976-1977 | Pontiac Ventura
      1978-1979 | Plymouth Phoenix
      1988-1999 | GMC C15/ C1500
      1979-1995 | GMC G15/ G1500
      1978-1995 | GMC G25/ G2500
      1979-1999 | GMC K15/ K1500
      1979-1997 | GMC C15/ C1500
      1996-2003 | GMC Savana 1500
      1996-1998 | GMC Savana 2500
      1994-1998 | GMC Sonoma
      1979-2000 | GMC Suburban
      1994-2000 | GMC S15 Jimmy / Pickup
      1992-1993 | GMC Typhoon>
      1992-2000 | GMC Yukon 1500


      ---tab FAQs---

      Q1: What are the main benefits of the SPELAB Billet Aluminum Rear Differential Cover? A1: The main benefits include enhanced cooling performance, increased durability, and extended differential lifespan, thanks to its A380 aluminum construction and advanced design features.

      Q2: How does the SPELAB differential cover improve cooling? A2: The cover features 534 sq. inches of external cooling fins and 120 sq. inches of internal heat fins, which significantly improve heat dissipation and maintain optimal temperatures under heavy loads.

      Q3: Is the SPELAB differential cover compatible with my GM 8.5" differential? A3: Yes, the SPELAB Billet Aluminum Rear Differential Cover is specifically designed for GM 8.5" differentials with 5/16" 10 bolts.

      Q4: What materials are used in the construction of the SPELAB differential cover? A4: The cover is made from high-quality A380 aluminum, providing superior strength and cooling performance.

      Q5: How easy is it to install the SPELAB differential cover? A5: The cover is designed for easy installation, with a detailed installation guide provided. It includes 304 stainless steel hex flange mounting bolts for added convenience.

      Q6: How does the SPELAB differential cover improve lubrication? A6: The cover features efficient lubrication pathways that direct fluid to the pinion and ring gear bearings, reducing wear and extending the differential's lifespan.

      Q7: Can I monitor the oil level easily with this differential cover? A7: Yes, the cover includes a sight glass with a Viton O-ring seal, allowing for easy and accurate oil level monitoring.

      Q8: What is the purpose of the magnetic drain plug? A8: The magnetic drain plug simplifies the oil change process by capturing metallic debris, ensuring clean fluid and easy maintenance.

      Q9: Does the SPELAB differential cover include any anti-rust features? A9: Yes, the cover has a wrinkle paint finish anti-rust coating that provides superior protection against corrosion, ensuring long-lasting performance.

      Q10: How does the SPELAB differential cover help with temperature monitoring? A10: The cover includes a 1/8 inch NPT sensor port, which facilitates precise temperature monitoring, crucial for maintaining the health of your differential.

      ---tab Blog & Video---

      Video

      Video Thumbnail 0

      First Purchase: 6.0L Power Stroke with SPELAB Differential Cover: 800+ HP Performance Upgrade, Full-System Modification Tested!

      Performance UpgradeInstallation Guide
      Video Thumbnail 0

      RAM Series SPELAB Differential Cover Installation Overview|Installation Process + Real-World Feedback

      Failure PreventionInstallation Guide
      Video Thumbnail 0

      SPELAB Differential Cover 6.0 POWERSTROKE Installation Process + Real-World Feedback

      Failure PreventionInstallation Guide
      Video Thumbnail 0

      The Differential Cover Upgrade Every Truck Owner Needs

      Comparison VideoRepair Guide
      Video Thumbnail 0

      SPELAB Differential Cover User Experience: High Strength + Easy Maintenance

      Comparison VideoRepair Guide
      Video Thumbnail 0

      Dodge / RAM SPELAB Differential Cover—truck build just got a serious boost

      Comparison VideoRepair Guide
      ×

       

      Select Style
      Select Color
      From $53.70

      Original: $178.99

      -70%
      Differential Cover GM 8.5″/8.6″ 10 Bolts Rear Axle | SPELAB

      $178.99

      $53.70

      More Images

      Differential Cover GM 8.5″/8.6″ 10 Bolts Rear Axle | SPELAB - Image 2
      Differential Cover GM 8.5″/8.6″ 10 Bolts Rear Axle | SPELAB - Image 3
      Differential Cover GM 8.5″/8.6″ 10 Bolts Rear Axle | SPELAB - Image 4
      Differential Cover GM 8.5″/8.6″ 10 Bolts Rear Axle | SPELAB - Image 5
      Differential Cover GM 8.5″/8.6″ 10 Bolts Rear Axle | SPELAB - Image 6
      Differential Cover GM 8.5″/8.6″ 10 Bolts Rear Axle | SPELAB - Image 7
      Differential Cover GM 8.5″/8.6″ 10 Bolts Rear Axle | SPELAB - Image 8
      Differential Cover GM 8.5″/8.6″ 10 Bolts Rear Axle | SPELAB - Image 9
      Differential Cover GM 8.5″/8.6″ 10 Bolts Rear Axle | SPELAB - Image 10
      Differential Cover GM 8.5″/8.6″ 10 Bolts Rear Axle | SPELAB - Image 11
      Differential Cover GM 8.5″/8.6″ 10 Bolts Rear Axle | SPELAB - Image 12
      Differential Cover GM 8.5″/8.6″ 10 Bolts Rear Axle | SPELAB - Image 13
      Differential Cover GM 8.5″/8.6″ 10 Bolts Rear Axle | SPELAB - Image 14
      Differential Cover GM 8.5″/8.6″ 10 Bolts Rear Axle | SPELAB - Image 15

      Differential Cover GM 8.5″/8.6″ 10 Bolts Rear Axle | SPELAB

      ---tab Description---


      Differential Cover GM 8.5″/8.6″ 10 Bolts Rear Axle | SPELAB

      Differential Cover For AAM 11.5"/11.8″ 14 Bolts Rear Axle | SPELAB-4

      Function:

      Protects the differential, seals the differential, stores differential fluid.

      Fitment:

      • 1999-2000 | Cadillac Escalade
      • 1970-1975 | Chevrolet Bel Air
      • 1970-1981 | Chevrolet Camaro
      • 1970-1996 | Chevrolet Caprice
      • 1971-1976 | Chevrolet El Camino
      • 1971-1996 | Chevrolet Impala
      • 1973-1983 | Chevrolet Malibu
      • 1973-1978 | Chevrolet Monte Carlo
      • 1970-1979 | Chevrolet Nova
      • 1977-1994 | Chevrolet Blazer Front
      • 1977-1991 | Chevrolet K5 Blazer Front
      • 1979-1987 | Chevrolet C10
      • 1988-1999 | Chevrolet C1500
      • 1975-1995 | Chevrolet G20
      • 1979-1999 | Chevrolet K10/ K1500
      • 1994-2000 | Chevrolet S10 Blazer / Pickup
      • 1979-2000 | Chevrolet Suburban
      • 1995-1998 | Chevrolet Tahoe 1500
      • 1996-2003 | Chevrolet Express Van 1500
      • 1973-1975 | Buick Apollo
      • 1971-1989 | Buick Electra
      • 1973-1987 | Buick Regal RWD
      • 1975-1978 | Buick Riviera RWD
      • 1970-1979 | Buick Skylark
      • 1968-1968 | Oldsmobile 442
      • 1970-1987 | Oldsmobile Cutlass
      • 1973-1979 | Oldsmobile Omega
      • 1970-1986 | Pontiac Bonneville
      • 1965-1981 | Pontiac Catalina
      • 1970-1981 | Pontiac Firebird
      • 1965-1977 | Pontiac GTO
      • 1971-1987 | Pontiac Grand Prix>
      • 1964-1983 | Pontiac LeMans
      • 1970-1981 | Pontiac Trans Am
      • 1976-1977 | Pontiac Ventura
      • 1978-1979 | Plymouth Phoenix
      • 1988-1999 | GMC C15/ C1500
      • 1979-1995 | GMC G15/ G1500
      • 1978-1995 | GMC G25/ G2500
      • 1979-1999 | GMC K15/ K1500
      • 1979-1997 | GMC C15/ C1500
      • 1996-2003 | GMC Savana 1500
      • 1996-1998 | GMC Savana 2500
      • 1994-1998 | GMC Sonoma
      • 1979-2000 | GMC Suburban
      • 1994-2000 | GMC S15 Jimmy / Pickup
      • 1992-1993 | GMC Typhoon>
      • 1992-2000 | GMC Yukon 1500

      Note: The year and model may not guarantee compatibility. Please confirm whether the axle is GM 8.5″/8.6″ 10 Bolts.

      Differential Cover GM 8.5″/8.6″ 10 Bolts Rear Axle | SPELAB-85

      Innovative points:

      1. The external heat sink design increases the contact area between the differential cover and the surrounding air, enhancing heat dissipation performance.

      2. The internal diversion groove design aligns with the direction of liquid flow in the differential gear's rotation, ensuring maximum flow rate for better lubrication.

      3. The use of aluminum alloy material significantly improves cooling performance compared to the commonly used iron material. When comparing billet to cast products, billet items are often considered more durable and built for long-lasting performance.

      4. An external observation mirror with a floating ball is used to monitor the oil level. Traditional observation mirrors in the market may darken over time, reducing visibility. Therefore, the floating ball allows us to monitor the oil level even if the mirror darkens.

      5. The outside with black wrinkle paint providing rust resistance.

           Specifications:

          Differential Cover Kit For 8.5 in. GM With 5/16 in. Cover Bolts Size |SPELAB
          Differential Cover Kit 5/16 in. 12 Bolts |SPELAB-1
          Differential Cover Kit 5/16 in. 12 Bolts |SPELAB-2
          Differential Cover Kit For 8.5 in. GM With 5/16 in. Cover Bolts Comparison |SPELAB

          Shipping

          • Fast Shipping Policy:

            The order will be dispatched within 1-2 business day, and the package will arrive within your order's estimated date. Please click Shipping Policy for more details.
          • Easy Return Policy:

            Every order comes with a 14-day free return which means you don't have to pay for a return slip. Please click Return Policy for more details.

          ---tab Fitment---

          Fitment:

          1999-2000 | Cadillac Escalade
          1970-1975 | Chevrolet Bel Air
          1970-1981 | Chevrolet Camaro
          1970-1996 | Chevrolet Caprice
          1971-1976 | Chevrolet El Camino
          1971-1996 | Chevrolet Impala
          1973-1983 | Chevrolet Malibu
          1973-1978 | Chevrolet Monte Carlo
          1970-1979 | Chevrolet Nova
          1977-1994 | Chevrolet Blazer Front
          1977-1991 | Chevrolet K5 Blazer Front
          1979-1987 | Chevrolet C10
          1988-1999 | Chevrolet C1500
          1975-1995 | Chevrolet G20
          1979-1999 | Chevrolet K10/ K1500
          1994-2000 | Chevrolet S10 Blazer / Pickup
          1979-2000 | Chevrolet Suburban
          1995-1998 | Chevrolet Tahoe 1500
          1996-2003 | Chevrolet Express Van 1500
          1973-1975 | Buick Apollo
          1971-1989 | Buick Electra
          1973-1987 | Buick Regal RWD
          1975-1978 | Buick Riviera RWD
          1970-1979 | Buick Skylark
          1968-1968 | Oldsmobile 442
          1970-1987 | Oldsmobile Cutlass
          1973-1979 | Oldsmobile Omega
          1970-1986 | Pontiac Bonneville
          1965-1981 | Pontiac Catalina
          1970-1981 | Pontiac Firebird
          1965-1977 | Pontiac GTO
          1971-1987 | Pontiac Grand Prix>
          1964-1983 | Pontiac LeMans
          1970-1981 | Pontiac Trans Am
          1976-1977 | Pontiac Ventura
          1978-1979 | Plymouth Phoenix
          1988-1999 | GMC C15/ C1500
          1979-1995 | GMC G15/ G1500
          1978-1995 | GMC G25/ G2500
          1979-1999 | GMC K15/ K1500
          1979-1997 | GMC C15/ C1500
          1996-2003 | GMC Savana 1500
          1996-1998 | GMC Savana 2500
          1994-1998 | GMC Sonoma
          1979-2000 | GMC Suburban
          1994-2000 | GMC S15 Jimmy / Pickup
          1992-1993 | GMC Typhoon>
          1992-2000 | GMC Yukon 1500


          ---tab FAQs---

          Q1: What are the main benefits of the SPELAB Billet Aluminum Rear Differential Cover? A1: The main benefits include enhanced cooling performance, increased durability, and extended differential lifespan, thanks to its A380 aluminum construction and advanced design features.

          Q2: How does the SPELAB differential cover improve cooling? A2: The cover features 534 sq. inches of external cooling fins and 120 sq. inches of internal heat fins, which significantly improve heat dissipation and maintain optimal temperatures under heavy loads.

          Q3: Is the SPELAB differential cover compatible with my GM 8.5" differential? A3: Yes, the SPELAB Billet Aluminum Rear Differential Cover is specifically designed for GM 8.5" differentials with 5/16" 10 bolts.

          Q4: What materials are used in the construction of the SPELAB differential cover? A4: The cover is made from high-quality A380 aluminum, providing superior strength and cooling performance.

          Q5: How easy is it to install the SPELAB differential cover? A5: The cover is designed for easy installation, with a detailed installation guide provided. It includes 304 stainless steel hex flange mounting bolts for added convenience.

          Q6: How does the SPELAB differential cover improve lubrication? A6: The cover features efficient lubrication pathways that direct fluid to the pinion and ring gear bearings, reducing wear and extending the differential's lifespan.

          Q7: Can I monitor the oil level easily with this differential cover? A7: Yes, the cover includes a sight glass with a Viton O-ring seal, allowing for easy and accurate oil level monitoring.

          Q8: What is the purpose of the magnetic drain plug? A8: The magnetic drain plug simplifies the oil change process by capturing metallic debris, ensuring clean fluid and easy maintenance.

          Q9: Does the SPELAB differential cover include any anti-rust features? A9: Yes, the cover has a wrinkle paint finish anti-rust coating that provides superior protection against corrosion, ensuring long-lasting performance.

          Q10: How does the SPELAB differential cover help with temperature monitoring? A10: The cover includes a 1/8 inch NPT sensor port, which facilitates precise temperature monitoring, crucial for maintaining the health of your differential.

          ---tab Blog & Video---

          Video

          Video Thumbnail 0

          First Purchase: 6.0L Power Stroke with SPELAB Differential Cover: 800+ HP Performance Upgrade, Full-System Modification Tested!

          Performance UpgradeInstallation Guide
          Video Thumbnail 0

          RAM Series SPELAB Differential Cover Installation Overview|Installation Process + Real-World Feedback

          Failure PreventionInstallation Guide
          Video Thumbnail 0

          SPELAB Differential Cover 6.0 POWERSTROKE Installation Process + Real-World Feedback

          Failure PreventionInstallation Guide
          Video Thumbnail 0

          The Differential Cover Upgrade Every Truck Owner Needs

          Comparison VideoRepair Guide
          Video Thumbnail 0

          SPELAB Differential Cover User Experience: High Strength + Easy Maintenance

          Comparison VideoRepair Guide
          Video Thumbnail 0

          Dodge / RAM SPELAB Differential Cover—truck build just got a serious boost

          Comparison VideoRepair Guide
          ×

           

          Product Information

          Shipping & Returns

          Description

          ---tab Description---


          Differential Cover GM 8.5″/8.6″ 10 Bolts Rear Axle | SPELAB

          Differential Cover For AAM 11.5"/11.8″ 14 Bolts Rear Axle | SPELAB-4

          Function:

          Protects the differential, seals the differential, stores differential fluid.

          Fitment:

          • 1999-2000 | Cadillac Escalade
          • 1970-1975 | Chevrolet Bel Air
          • 1970-1981 | Chevrolet Camaro
          • 1970-1996 | Chevrolet Caprice
          • 1971-1976 | Chevrolet El Camino
          • 1971-1996 | Chevrolet Impala
          • 1973-1983 | Chevrolet Malibu
          • 1973-1978 | Chevrolet Monte Carlo
          • 1970-1979 | Chevrolet Nova
          • 1977-1994 | Chevrolet Blazer Front
          • 1977-1991 | Chevrolet K5 Blazer Front
          • 1979-1987 | Chevrolet C10
          • 1988-1999 | Chevrolet C1500
          • 1975-1995 | Chevrolet G20
          • 1979-1999 | Chevrolet K10/ K1500
          • 1994-2000 | Chevrolet S10 Blazer / Pickup
          • 1979-2000 | Chevrolet Suburban
          • 1995-1998 | Chevrolet Tahoe 1500
          • 1996-2003 | Chevrolet Express Van 1500
          • 1973-1975 | Buick Apollo
          • 1971-1989 | Buick Electra
          • 1973-1987 | Buick Regal RWD
          • 1975-1978 | Buick Riviera RWD
          • 1970-1979 | Buick Skylark
          • 1968-1968 | Oldsmobile 442
          • 1970-1987 | Oldsmobile Cutlass
          • 1973-1979 | Oldsmobile Omega
          • 1970-1986 | Pontiac Bonneville
          • 1965-1981 | Pontiac Catalina
          • 1970-1981 | Pontiac Firebird
          • 1965-1977 | Pontiac GTO
          • 1971-1987 | Pontiac Grand Prix>
          • 1964-1983 | Pontiac LeMans
          • 1970-1981 | Pontiac Trans Am
          • 1976-1977 | Pontiac Ventura
          • 1978-1979 | Plymouth Phoenix
          • 1988-1999 | GMC C15/ C1500
          • 1979-1995 | GMC G15/ G1500
          • 1978-1995 | GMC G25/ G2500
          • 1979-1999 | GMC K15/ K1500
          • 1979-1997 | GMC C15/ C1500
          • 1996-2003 | GMC Savana 1500
          • 1996-1998 | GMC Savana 2500
          • 1994-1998 | GMC Sonoma
          • 1979-2000 | GMC Suburban
          • 1994-2000 | GMC S15 Jimmy / Pickup
          • 1992-1993 | GMC Typhoon>
          • 1992-2000 | GMC Yukon 1500

          Note: The year and model may not guarantee compatibility. Please confirm whether the axle is GM 8.5″/8.6″ 10 Bolts.

          Differential Cover GM 8.5″/8.6″ 10 Bolts Rear Axle | SPELAB-85

          Innovative points:

          1. The external heat sink design increases the contact area between the differential cover and the surrounding air, enhancing heat dissipation performance.

          2. The internal diversion groove design aligns with the direction of liquid flow in the differential gear's rotation, ensuring maximum flow rate for better lubrication.

          3. The use of aluminum alloy material significantly improves cooling performance compared to the commonly used iron material. When comparing billet to cast products, billet items are often considered more durable and built for long-lasting performance.

          4. An external observation mirror with a floating ball is used to monitor the oil level. Traditional observation mirrors in the market may darken over time, reducing visibility. Therefore, the floating ball allows us to monitor the oil level even if the mirror darkens.

          5. The outside with black wrinkle paint providing rust resistance.

               Specifications:

              Differential Cover Kit For 8.5 in. GM With 5/16 in. Cover Bolts Size |SPELAB
              Differential Cover Kit 5/16 in. 12 Bolts |SPELAB-1
              Differential Cover Kit 5/16 in. 12 Bolts |SPELAB-2
              Differential Cover Kit For 8.5 in. GM With 5/16 in. Cover Bolts Comparison |SPELAB

              Shipping

              • Fast Shipping Policy:

                The order will be dispatched within 1-2 business day, and the package will arrive within your order's estimated date. Please click Shipping Policy for more details.
              • Easy Return Policy:

                Every order comes with a 14-day free return which means you don't have to pay for a return slip. Please click Return Policy for more details.

              ---tab Fitment---

              Fitment:

              1999-2000 | Cadillac Escalade
              1970-1975 | Chevrolet Bel Air
              1970-1981 | Chevrolet Camaro
              1970-1996 | Chevrolet Caprice
              1971-1976 | Chevrolet El Camino
              1971-1996 | Chevrolet Impala
              1973-1983 | Chevrolet Malibu
              1973-1978 | Chevrolet Monte Carlo
              1970-1979 | Chevrolet Nova
              1977-1994 | Chevrolet Blazer Front
              1977-1991 | Chevrolet K5 Blazer Front
              1979-1987 | Chevrolet C10
              1988-1999 | Chevrolet C1500
              1975-1995 | Chevrolet G20
              1979-1999 | Chevrolet K10/ K1500
              1994-2000 | Chevrolet S10 Blazer / Pickup
              1979-2000 | Chevrolet Suburban
              1995-1998 | Chevrolet Tahoe 1500
              1996-2003 | Chevrolet Express Van 1500
              1973-1975 | Buick Apollo
              1971-1989 | Buick Electra
              1973-1987 | Buick Regal RWD
              1975-1978 | Buick Riviera RWD
              1970-1979 | Buick Skylark
              1968-1968 | Oldsmobile 442
              1970-1987 | Oldsmobile Cutlass
              1973-1979 | Oldsmobile Omega
              1970-1986 | Pontiac Bonneville
              1965-1981 | Pontiac Catalina
              1970-1981 | Pontiac Firebird
              1965-1977 | Pontiac GTO
              1971-1987 | Pontiac Grand Prix>
              1964-1983 | Pontiac LeMans
              1970-1981 | Pontiac Trans Am
              1976-1977 | Pontiac Ventura
              1978-1979 | Plymouth Phoenix
              1988-1999 | GMC C15/ C1500
              1979-1995 | GMC G15/ G1500
              1978-1995 | GMC G25/ G2500
              1979-1999 | GMC K15/ K1500
              1979-1997 | GMC C15/ C1500
              1996-2003 | GMC Savana 1500
              1996-1998 | GMC Savana 2500
              1994-1998 | GMC Sonoma
              1979-2000 | GMC Suburban
              1994-2000 | GMC S15 Jimmy / Pickup
              1992-1993 | GMC Typhoon>
              1992-2000 | GMC Yukon 1500


              ---tab FAQs---

              Q1: What are the main benefits of the SPELAB Billet Aluminum Rear Differential Cover? A1: The main benefits include enhanced cooling performance, increased durability, and extended differential lifespan, thanks to its A380 aluminum construction and advanced design features.

              Q2: How does the SPELAB differential cover improve cooling? A2: The cover features 534 sq. inches of external cooling fins and 120 sq. inches of internal heat fins, which significantly improve heat dissipation and maintain optimal temperatures under heavy loads.

              Q3: Is the SPELAB differential cover compatible with my GM 8.5" differential? A3: Yes, the SPELAB Billet Aluminum Rear Differential Cover is specifically designed for GM 8.5" differentials with 5/16" 10 bolts.

              Q4: What materials are used in the construction of the SPELAB differential cover? A4: The cover is made from high-quality A380 aluminum, providing superior strength and cooling performance.

              Q5: How easy is it to install the SPELAB differential cover? A5: The cover is designed for easy installation, with a detailed installation guide provided. It includes 304 stainless steel hex flange mounting bolts for added convenience.

              Q6: How does the SPELAB differential cover improve lubrication? A6: The cover features efficient lubrication pathways that direct fluid to the pinion and ring gear bearings, reducing wear and extending the differential's lifespan.

              Q7: Can I monitor the oil level easily with this differential cover? A7: Yes, the cover includes a sight glass with a Viton O-ring seal, allowing for easy and accurate oil level monitoring.

              Q8: What is the purpose of the magnetic drain plug? A8: The magnetic drain plug simplifies the oil change process by capturing metallic debris, ensuring clean fluid and easy maintenance.

              Q9: Does the SPELAB differential cover include any anti-rust features? A9: Yes, the cover has a wrinkle paint finish anti-rust coating that provides superior protection against corrosion, ensuring long-lasting performance.

              Q10: How does the SPELAB differential cover help with temperature monitoring? A10: The cover includes a 1/8 inch NPT sensor port, which facilitates precise temperature monitoring, crucial for maintaining the health of your differential.

              ---tab Blog & Video---

              Video

              Video Thumbnail 0

              First Purchase: 6.0L Power Stroke with SPELAB Differential Cover: 800+ HP Performance Upgrade, Full-System Modification Tested!

              Performance UpgradeInstallation Guide
              Video Thumbnail 0

              RAM Series SPELAB Differential Cover Installation Overview|Installation Process + Real-World Feedback

              Failure PreventionInstallation Guide
              Video Thumbnail 0

              SPELAB Differential Cover 6.0 POWERSTROKE Installation Process + Real-World Feedback

              Failure PreventionInstallation Guide
              Video Thumbnail 0

              The Differential Cover Upgrade Every Truck Owner Needs

              Comparison VideoRepair Guide
              Video Thumbnail 0

              SPELAB Differential Cover User Experience: High Strength + Easy Maintenance

              Comparison VideoRepair Guide
              Video Thumbnail 0

              Dodge / RAM SPELAB Differential Cover—truck build just got a serious boost

              Comparison VideoRepair Guide
              ×