Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Section 272 (Drive Axles - Except Full Floating Axle): Lubrication
Fill differential with appropriate amount of 80W or 80W-90 GL-5 gear lubricant. See LUBRICATION SPECIFICATIONS table. On models with limited-slip or locking differential, add 4 ozs (118 ml) of limited slip additive. On "S" & "T" series fill differential with appropriate amount of 75/90 Synthetic gear lubricant.
| Application | Specification | |||
|---|---|---|---|---|
| "C" & "K" Series | ||||
| 8.6" Ring Gear | 4.8 Pts. (2.3L) | |||
| 9.5" Ring Gear | 5.5 Pts. (2.6L) | |||
| "G" Series | ||||
| 8.6" Ring Gear | 4.3 Pts. (2.0L) | |||
| 9.5" Ring Gear | 5.5 Pts. (2.6L) | |||
| "L" & "M" Series | 3.6 Pts. (1.7L) | |||
| "S" & "T" Series (Blazer, Jimmy Canadian, S-10 & Sonoma) | ||||
| 7.6" Ring Gear | 3.6 Pts. (1.7L) | |||
| 8.0" & 8.6" Ring Gear | 4.0 Pts. (1.9L) | |||
| "S" & "T" Series (Bravada, Envoy & Trailblazer) | ||||
| 8.0" & 8.6" Ring Gear | (1) 4.0 Pts. (1.9L) | |||
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.