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

Spelab

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

Reviewed by the The Top Finds editors · How we test

$178.99
Check price at Spelab

You'll complete your purchase on Spelab's site · price checked May 21

The Top Finds is reader-supported. When you buy through links on our site, we may earn an affiliate commission.

new-arrival

Our review

---tab Description--- Differential Cover GM 8.5″/8.6″ 10 Bolts Rear Axle | SPELAB 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. 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: 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 First Purchase: 6.0L Power Stroke with SPELAB Differential Cover: 800+ HP Performance Upgrade, Full-System Modification Tested! Performance Upgrade Installation Guide RAM Series SPELAB Differential Cover Installation Overview|Installation Process + Real-World Feedback Failure Prevention Installation Guide SPELAB Differential Cover 6.0 POWERSTROKE Installation Process + Real-World Feedback Failure Prevention Installation Guide The Differential Cover Upgrade Every Truck Owner Needs Comparison Video Repair Guide SPELAB Differential Cover User Experience: High Strength + Easy Maintenance Comparison Video Repair Guide Dodge / RAM SPELAB Differential Cover—truck build just got a serious boost Comparison Video Repair Guide ×

Ready to buy

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

Check price at Spelab

The Top Finds is reader-supported. When you buy through links on our site, we may earn an affiliate commission.