












Differential Cover For GM 10.5″ 14 Bolts Rear Axle | SPELAB
This product is vehicle-specific. Select your year, make, model, engine and transmission to confirm compatibility before adding it to your cart.
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- Ships from SPELAB
Differential Cover For GM 10.5″ 14 Bolts Rear Axle| SPELAB
---tab Fitment---
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.
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
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.
EXPLODED VIEW
---tab Description---
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:
---tab FAQs---
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.
---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
×
Differential Cover For GM 10.5″ 14 Bolts Rear Axle| SPELAB
---tab Fitment---
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.
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
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.
EXPLODED VIEW
---tab Description---
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:
---tab FAQs---
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.
---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
×
SPELAB Auto Parts: 1 year from delivery; supplier conditions apply. SPELAB offers a one-year limited warranty from delivery for material/workmanship defects under normal use, original purchaser only, with proof of purchase. Consumables, wear/cosmetic damage, improper installation, alteration, misuse and removal/installation labor are excluded. Approved remedies are repair, replacement or replacement parts at SPELAB’s discretion.
Return and warranty information is based on what SPELAB Auto Parts offers. Product-specific eligibility and the supplier’s published conditions apply; FullSpecDiesel does not add or extend coverage.
SPELAB Auto Parts warranty policyView complete warrantyProduct conditions
Return and warranty information is based on what SPELAB Auto Parts offers. Product-specific eligibility and the supplier’s published conditions apply; FullSpecDiesel does not add or extend coverage.
Professional installation is recommended.
- Return eligibility
- SPELAB allows return requests within 30 days of delivery, with authorization and undamaged goods, original packaging and accessories. Tuners are final sale. Customer pays voluntary return shipping; original shipping is not refunded. SPELAB pays return shipping for approved damaged, incorrect or manufacturing-defective items. Transit damage must be reported within two business days and incorrect items within seven days. Based on what SPELAB Auto Parts offers.
- Return window
- Not stated for this product; see supplier terms
- Restocking fee
- See supplier terms; no product-specific fee stated
- Return shipping
- Based on the supplier’s return policy; see terms
- Made to order
- No
- Backorder status
- Not backordered
- Cancellation
- Subject to supplier terms; contact FullSpecDiesel before requesting cancellation
- Warranty provider
- SPELAB Auto Parts
- Warranty duration
- 1 year from delivery; supplier conditions apply
- Compatibility
- Listed for specific vehicle configurations
- Legal use
- Street legal
- Processing estimate
- 3–10 business days supplier processing
- Shipping
- Shipping calculated at checkout
- Signature
- No signature requirement
- Supplier
- SPELAB Auto Parts
Product compatibility is based on the vehicle and product information provided. Review your selected truck, product options, measurements, modifications, and installation requirements before ordering.