Dear Valued Customers,
At SPELAB, we are committed to enhancing your shopping experience. Based on valuable feedback, we identified a common challenge: selecting the correct rear differential cover can be confusing when relying solely on product titles.
To solve this, we are excited to introduce a streamlined process to help you find the right differential cover. This guide provides multiple tools to confirm compatibility:
How Do I Determine If the Differential Cover Fits My Car?
- OEM Axle ID: Ensures proper fit by verifying the factory code or name of the differential (e.g., Dana 60, AAM 11.5).
- Bolt Count & Shape: Use the number of bolts and the shape of the cover gasket as a key indicator.
- Model Match: Quickly identify the correct cover by matching the make, model, and year.
3 Steps to Guarantee the Right Fit
To make selection effortless, we recommend following these compatibility priorities:
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Priority 1: Axle Information (Most Accurate)
Identify your vehicle's specific axle model (e.g., AAM 11.5'', Ford 9.75'', Dana 44). This is the gold standard for fitment.
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Priority 2: Bolt Count & Cover Shape
If you don't know the axle name, count the bolts and observe the shape. For example, Ford F-150s often use a 12-bolt cover, but the shape differs between the Super 8.8 and 9.75 axles.
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Priority 3: Expert Assistance & Guarantee
Still unsure? Contact the SPELAB team. Upload a clear photo of your original differential cover. If our recommended product doesn’t fit, we offer a full refund.
Differential Covers Fitment Overview
Use the table below to match your vehicle to the correct SPELAB Part Number (SKU).
| Material | SKU | Compatible Axle | Position | Common Vehicle Models | Action |
|---|---|---|---|---|---|
| Forged Aluminum | OS08801BK | Ford 9.75″ (12 Bolts) | Rear | 1997-2023 Ford F-150, Raptor, Expedition, Transit | View Product |
| Cast Aluminum | OS08802BK | AAM 11.5″/11.8″ (14 Bolts) | Rear | 1999+ Chevy Silverado / GMC Sierra 2500HD/3500HD; 2003+ Ram 2500/3500 | View Product |
| Forged Aluminum | OS08803BK | Dana M275 10.8″ (14 Bolts) | Rear | 2017+ Ford F250/F350 Super Duty | View Product |
| Forged Aluminum | OS08804BK | Ford 10.25″/10.5″ (12 Bolts) | Rear | 1985-2016 Ford F-250/F-350 Super Duty, Excursion | View Product |
| Forged Aluminum | OS08806BK | DANA 50/60/70 (10 Bolts) | Front/Rear | Ford Super Duty, Dodge Ram, Chevy C30/C35 (Check Year) | View Product |
| Forged Aluminum | OS08807BK | AAM 9.25" (12 Bolts) | Front | 2013-2020 Ram 2500/3500, Power Wagon | View Product |
| Cast Aluminum | OS08808BK | DANA 44 (10 Bolts) | Front/Rear | Jeep Wrangler (TJ/JK), Cherokee XJ, Chevy K10/K25, Nissan Titan | View Product |
| Forged Aluminum | OS08809BK | DANA 30 (10 Bolts) | Front | Jeep Wrangler TJ/JK, Ford Bronco (Classic) | View Product |
| Cast Aluminum | OS08810BK | DANA 35 (10 Bolts) | Rear | Jeep Wrangler YJ/TJ, Cherokee XJ, Grand Cherokee ZJ/WJ | View Product |
| Cast Aluminum | OS08811BK | Dana 44 AdvanTEK M210 | Front | 2018+ Jeep Wrangler JL, 2020+ Gladiator JT, 2021+ Bronco | View Product |
| Forged Aluminum | OS08812BK | Dana 44 AdvanTEK M220 | Rear | 2018+ Jeep Wrangler JL, 2020+ Gladiator JT, 2021+ Bronco | View Product |
| Forged Aluminum | OS08813BK | Chrysler 9.25'' (12 Bolts) | Rear | 1994-2010 Dodge Ram 1500, Dakota, Durango | View Product |
| Forged Aluminum | OS08814BK | GM 10.5" (14 Bolts) | Rear | 1999-2019 Chevy Silverado / GMC Sierra 2500HD (Gas/Diesel) | View Product |
OEM Differential Cover Identification Guide
Match your stock cover to these diagrams to confirm your axle type before ordering.
Frequently Asked Questions
Q: How often should I replace my differential cover?
A: While the cover itself can last the life of the vehicle, we recommend inspecting it for rust or damage every time you change your fluid. Upgrading to a SPELAB aluminum cover is recommended every 150,000 km (approx. 93,000 miles) or sooner if you tow heavy loads, to ensure optimal cooling.
Q: Why is bolt count not enough to identify my axle?
A: Some axles share the same bolt count but have different shapes. For example, both the Ford Super 8.8 and the Ford 9.75 have 12 bolts, but they are not interchangeable. Always check the shape and the axle tag/door jamb sticker.
Q: Do SPELAB covers come with a gasket?
A: Many of our kits include a gasket or are designed to work with RTV silicone. Check the specific product page description for details on what is included in the box.
Related Articles & Guides
Thank you for your continued trust and support. We look forward to serving you better with this new selection tool.
The SPELAB Team
2 comments
Red rear differential cover 2019 jeep wrangler JL rubicon
Will you be making a diff cover for the F150’s with the Super 8.8 Rear Diff?