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

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

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 Construction
Provides superior strength and impact resistance compared to OEM stamped steel covers, helping protect internal components in demanding conditions.
Improved Heat Dissipation
Aluminum design helps reduce differential oil temperatures, extending gear and bearing life—especially beneficial for towing and off-road use.
Precision-Machined Sealing Surface
CNC-machined flange ensures a secure, leak-free seal for long-term reliability.
Service-Friendly Design
Integrated fill and drain ports (if equipped) make fluid changes faster and cleaner without removing the cover.

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.

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