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.
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HOMESERVICE MANUALSGMC1989S15/T15 2WD P/U L4-151 2.5LREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSDIFFERENTIAL ASSEMBLYREAR AXLENON-LOCKING DIFFERENTIAL10-1/2 INCH RING GEARFASTENER TIGHTENING SPECIFICATIONS
1989 GMC S15/T15 2WD P/U L4-151 2.5L
Fastener Tightening Specifications
1989 GMC S15/T15 2WD P/U L4-151 2.5LSECTION Fastener Tightening Specifications
10 1/2-INCH RING GEAR
Adjusting Nut Lock Bolts 30 Nm (22 ft. lbs.)
Axle Cover Bolts 27 Nm (20 ft. lbs.)
Bearing Cap Bolts 183 Nm (135 ft. lbs.)
Ring Gear Bolts 163 Nm (120 ft. lbs.)
Adjusting Nut Lock Bolts 30 Nm (22 ft. lbs.)
Axle Cover Bolts 27 Nm (20 ft. lbs.)
Bearing Cap Bolts 183 Nm (135 ft. lbs.)
Ring Gear Bolts 163 Nm (120 ft. lbs.)
RENDER: 1.0x
NO RELATED
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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.