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 MANUALSCHEVROLET1995BLAZER 4D UTILITY, AWDREPAIR AND DIAGNOSIS (SINGLE PAGE)STEERINGMANUAL STEERINGSTEERING SYSTEM - MANUALOVERHAULCOMPONENT SERVICEBALL NUT & WORM SHAFT ASSEMBLY
1995 Chevrolet Blazer 4D Utility, AWD
Ball Nut & Worm Shaft Assembly
1995 Chevrolet Blazer 4D Utility, AWDSECTION Ball Nut & Worm Shaft Assembly
Ball nut disassembly is only necessary if binding or tightness exists while rotating worm shaft. If disassembly is required, proceed to step 1).
CAUTION:
Note number of balls located in each circuit of ball nut. Correct amount must be installed in each circuit. Note direction of ball nut installation on worm shaft.
- Remove ball guides retaining clamp. Pull guides from ball nut while catching balls in clean pan. DO NOT lose balls. Turn nut over and rotate worm shaft until all balls have been removed.
- Remove worm shaft from ball nut. Wash parts, and inspect worm, nut grooves and ball bearings for indentations. Check ball guides for damage at ends where they deflect or pick up balls from helical path on worm shaft.
- Measure distance between ball grooves of worm gear. Distance between grooves determines amount of balls to be installed in each circuit. See BALL USAGE table.BALL USAGE
Groove Distance: In. (mm) Balls Per Circuit .04 (1.0) 25 .10 (2.5) 27 .20 (5.0) 27 - To reassemble ball nut and worm shaft, install ball nut with narrow end of ball nut teeth upward on right side (looking from steering wheel end of worm shaft). Install worm shaft. Ensure worm shaft is aligned with grooves in ball nut.
- Install guides in ball nut. Install proper amount of balls in one guide hole while rotating worm shaft. Repeat procedure for remaining guide. Install guide clamps and bolts.
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.