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 MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1535 (REAR DRIVE AXLE)SPECIFICATIONSREAR AXLE SPECIFICATIONS

2003 Chevrolet TrailBlazer 4.2 S, 4WD

Rear Axle Specifications

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Rear Axle Specifications

WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.

Application	Specification
Application	Metric	English
Differential Case Shim Sizes	1.0 mm	0.039 in
	1.25 mm	0.048 in
	1.3 mm	0.050 in
	1.4 mm	0.054 in
	1.5 mm	0.059 in
	1.55 mm	0.060 in
	1.6 mm	0.062 in
	1.65 mm	0.064 in
	1.7 mm	0.066 in
	1.75 mm	0.068 in
	1.8 mm	0.070 in
	1.85 mm	0.072 in
	1.9 mm	0.074 in
	1.95 mm	0.076 in
	2.0 mm	0.078 in
	2.05 mm	0.079 in
	2.1 mm	0.081 in
	2.15 mm	0.083 in
	2.2 mm	0.085 in
	2.25 mm	0.087 in
	2.30 mm	0.089 in
Pinion Housing/Cage Shim Sizes	0.2 mm	0.070 in
	0.25 mm	0.009 in
	0.3 mm	0.011 in
	0.5 mm	0.019 in
	1.0 mm	0.0393 in
	1.30 mm	0.050 in
	1.35 mm	0.052 in
	1.40 mm	0.054 in
	1.45 mm	0.056 in
	1.50 mm	0.058 in
	1.55 mm	0.060 in
	1.60 mm	0.062 in
	1.65 mm	0.064 in
	1.70 mm	0.066 in
	1.75 mm	0.068 in
	1.80 mm	0.070 in
	1.85 mm	0.072 in
	1.90 mm	0.074 in
	1.95 mm	0.076 in
Pinion Rotating Torque	1.4-2.8 N.m	12-25 lb in
Ring Gear/Pinion A1 Nominal Value - All Axles	103.00 mm	4.055 in
Ring Gear/Pinion A2 Nominal Value - 3.15-3.42 Ratio Axles	65.5 mm	2.58 in
Ring Gear/Pinion A2 Nominal Value - 2.73 Ratio Axle	74.5 mm	2.93 in
Ring Gear/Pinion Backlash	0.13-0.21 mm	0.0067-0.0082 in

RENDER: 1.0x

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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.