Vehicle Compatibility (GM with 10.5″ 14-Bolt Rear Axle)
GM also produced 9.5″ and 11.5/11.8″ 14-bolt axles — different size housings and covers, so this cover will not fit those. Always confirm your rear axle size by measuring the ring gear diameter or checking build sheets before ordering.
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2002-2006 | Chevrolet Avalanche 2500
1989-1998 | Chevrolet C2500
1989-1998 | Chevrolet C3500
1973-1988 | Chevrolet C20
1973-1988 | Chevrolet C30
1996-1998 | Chevrolet Express Van 2500
1996-2015 | Chevrolet Express Van 3500
2009-2015 | Chevrolet Express Van 4500
1975-1995 | Chevrolet G20
1979-1996 | Chevrolet G30
1973-1998 | Chevrolet K20/K2500
1972-1998 | Chevrolet K30/ K3500
1997-2005 | Chevrolet P30
1997-1999 | Chevrolet P3500
1999-2015 | Chevrolet Silverado 2500
1999-2015 | Chevrolet Silverado HD 2500
2001-2013 | Chevrolet Silverado HD 3500
1973-2015 | Chevrolet Suburban 3/4 Ton
1973-1998 | GMC C25/ C2500
1973-1998 | GMC C35/ C3500
1981-1987 | GMC G15/ G1500
1993-1996 | GMC G35/ G3500
1966-1998 | GMC K25/ K2500
1977-1998 | GMC K35/K3500
1996-1998 | GMC Savana 2500
1996-2015 | GMC Savana 3500
2009-2015 | GMC Savana 4500
1999-2015 | GMC Sierra 2500
1999-2015 | GMC Sierra 2500
1973-2000 | GMC Suburban 3/4 Ton
1992-2015 | GMC Yukon 2500
2006-2015 | GMC Yukon XL 2500
Note: The year and model may not guarantee compatibility. Please confirm whether the axle is GM 10.5″ 14 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：
Q1: What materials is the SPELAB gm 14 bolt differential cover made of?
A1: The SPELAB differential cover is made from A380 aluminum, offering superior strength and cooling performance.
Q2: How does the SPELAB gm 10.5 14 bolt differential cover improve cooling?
A2: The cover features external cooling fins (534 sq. inches) and internal heat fins (120 sq. inches), ensuring optimal heat dissipation and enhanced cooling.
Q3: Does the diff cover come with installation hardware?
A3: Yes, the SPELAB differential cover comes with 304 stainless steel hex flange mounting bolts for durable and easy installation.
Q4: How does the sight glass on the differential cover work?
A4: The sight glass, sealed with a Viton O-ring, allows for easy monitoring of the oil level without removing the cover.
Q5: Is the differential cover resistant to rust and corrosion?
A5: Yes, the cover has an anti-rust coating with a wrinkle paint finish that protects against corrosion.
Q6: Can I change the differential fluid without removing the cover?
A6: Yes, the differential cover is designed to allow easy fluid replacement without the need to remove the cover.
Q7: What benefits does the directional fluid guide provide?
A7: The directional fluid guide ensures comprehensive lubrication of the differential, reducing wear and extending its lifespan.
Q8: Is there a temperature monitoring option available with the differential cover?
A8: Yes, the differential cover includes a 1/8 inch NPT sensor port to facilitate temperature monitoring.
Q9: How does the magnetic drain plug help?
A9: The magnetic drain plug simplifies the oil change process by attracting metal particles, ensuring a cleaner differential.
PLEASE NOTE!
