Smart Design｜Differential Cover For AAM 9.5"/9.76" 2014-2025 GM 1500-14 Rear Axles | SPELAB｜ Other Products

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Differential Cover for 2014–2025 GM 1500 AAM 9.5 / 9.76 14-Bolt Rear Axles
Rear Axle Type:

AAM 9.5″ / 9.76″
14-Bolt Rear Differential

Compatible Vehicles (1500 Models Only):
Chevrolet

2014–2025 Silverado 1500
2015–2025 Tahoe
2015–2025 Suburban

GMC

2014–2025 Sierra 1500
2015–2025 Yukon
2015–2025 Yukon XL

⚠️ Important Fitment Notes
✔ Designed ONLY for AAM 9.5″ / 9.76″ 14-bolt rear axles
❌ NOT compatible with:

GM 8.5″ / 8.6″ rear axles
2500 / 3500 HD models
Non-AAM or different bolt-pattern differentials

Before ordering, please verify:

Rear differential has 14 cover bolts
Axle specification via VIN or factory build sheet

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The SPELAB Differential Cover is engineered specifically for 2014–2025 GM 1500 trucks and SUVs equipped with AAM 9.5″ or 9.76″ 14-bolt rear differentials. Designed to improve durability, heat management, and serviceability, it is an ideal upgrade over the factory stamped steel cover.
Key Features & Benefits

Heavy-Duty Aluminum ConstructionProvides superior strength and impact resistance compared to OEM stamped steel covers, helping protect internal components in demanding conditions.

Improved Heat DissipationAluminum design helps reduce differential oil temperatures, extending gear and bearing life—especially beneficial for towing and off-road use.

Precision-Machined Sealing SurfaceCNC-machined flange ensures a secure, leak-free seal for long-term reliability.

Service-Friendly DesignIntegrated fill and drain ports (if equipped) make fluid changes faster and cleaner without removing the cover.

Innovative points

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

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Brand:SPELABSKU:SPDS032500001002Tags:Differential Cover, Duramax Differential Cover