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Steering Gear: Service and Repair




Steering Gear Replacement

Special Tools

J 33432-A - Leaf Spring Compressor

Removal Procedure

Caution: With wheels of the vehicle facing straight ahead, secure the steering wheel utilizing steering column anti-rotation pin, steering column lock, or a strap to prevent rotation. Locking of the steering column will prevent damage and a possible malfunction of the SIR system. The steering wheel must be secured in position before disconnecting the following components:

* The steering column
* The intermediate shaft(s)
* The steering gear

After disconnecting these components, do not rotate the steering wheel or move the front tires and wheels. Failure to follow this procedure may cause the SIR coil assembly to become un-centered and cause possible damage to the SIR coil. If you think the SIR coil has became un-centered, refer to your specific SIR coil's centering procedure to re-center SIR Coil.

1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle (Service and Repair).
2. Remove the tire and wheel assemblies. Refer to Tire and Wheel Removal and Installation (Service and Repair).
3. Disconnect the tie rod ends from the steering knuckles. Refer to Steering Linkage Outer Tie Rod Replacement (Steering Linkage Outer Tie Rod Replacement).
4. Disconnect the intermediate shaft from the power steering gear. Refer to Intermediate Steering Shaft Replacement (Intermediate Steering Shaft Replacement).
5. Remove the stabilizer shaft. Refer to Stabilizer Shaft Replacement (Front Suspension).
6. Remove the power steering pressure and return hoses from the power steering gear.
7. Remove the power steering line hold-downs from the crossmember.
8. Remove the brake pressure modulator valve (BPMV) bracket. Refer to Brake Pressure Modulator Valve Bracket Replacement (Brake Pressure Modulator Valve Bracket Replacement).
9. Remove the 2 front crossmember mounting nuts.
10. Using hand tools only, LOOSEN, DO NOT REMOVE, the 2 rear crossmember mounting nuts 10 mm (0.394 in).
11. Disconnect the height sensor arm from the control arm.
12. Use a utility stand in order to support the front of the crossmember.
13. Using the J 33432-A - Compressor, compress the coil spring in order to allow the crossmember to lower enough to remove the power steering gear.
14. Remove the lower shock mounting bolts.
15. Remove the brake pipe bracket for the left front brake caliper from the crossmember.
16. Remove the plastic brake pipe hold-down for the right front brake pipe.




17. Remove the power steering gear mounting bolts (3) and nuts (2).
18. Maneuver the power steering gear (1) around the brake lines. Remove the power steering gear from the vehicle through the left wheelhouse opening.

Installation Procedure





Note: For Z06 and ZR1 applications, replace the crossmember-to-steering gear insulators.

1. Install the power steering gear (1) into the vehicle through the left wheelhouse opening.

Caution: Refer to Fastener Caution (Fastener Caution).

2. Install the power steering gear mounting bolts (3) and nuts (2) and tighten the nuts to 100 Nm (74 lb ft).
3. Install the lower shock mounting bolts. Refer to Shock Absorber Replacement (w/o F55) (Shock Absorber Replacement (W/O F55)) Shock Absorber Replacement (With F55) (Shock Absorber Replacement (With F55)).
4. Raise the crossmember with the utility stand and remove the J 33432-A - Compressor.
5. Install all of the crossmember mounting nuts and tighten to 110 Nm (81 lb ft).
6. Install the brake pipe bracket for the left front brake caliper.
7. Install the plastic brake pipe hold-down for the right front brake pipe.
8. Install the brake BPMV bracket. Refer to Brake Pressure Modulator Valve Bracket Replacement (Brake Pressure Modulator Valve Bracket Replacement).
9. Install the power steering pressure hose to the power steering gear and tighten the fittings to 27 Nm (20 lb ft).
10. Install the power steering return hose to the power steering gear and tighten the fittings to 27 Nm (20 lb ft).
11. Install the power steering hold-downs to the crossmember.
12. Install the stabilizer shaft to the crossmember. Refer to Stabilizer Shaft Replacement (Front Suspension).
13. Connect the intermediate shaft to the power steering gear. Refer to Intermediate Steering Shaft Replacement (Intermediate Steering Shaft Replacement).
14. Connect the height sensor arm to the control arm.
15. Connect the tie rod ends to the steering knuckles. Refer to Steering Linkage Outer Tie Rod Replacement (Steering Linkage Outer Tie Rod Replacement).
16. Install the tire and wheel assemblies. Refer to Tire and Wheel Removal and Installation (Service and Repair).
17. Lower the vehicle.
18. Bleed the power steering system. Refer to Power Steering System Bleeding (Service and Repair).
19. Adjust the front wheel toe. Refer to Wheel Alignment - Steering Wheel Angle and/or Front Toe Adjustment (Wheel Alignment - Steering Wheel Angle and/or Front Toe Adjustment).

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