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You missed a spline when installing the pitman arm on the steering box. Park the truck straight and remove the arm. with the arm off, unlock steering column and point the steering wheel straight. Lock the steering column. Then reinstall the pitman arm on the steering box carefully matching the splines in the arm to the shaft on the steering box. that should be close to running straight while driving straight.
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https://www.youtube.com/watch?v=gAD0ugRQNek
Apr 10, 2012 - Uploaded by 612to303
How to Adjust steering gear box play demonstrated on a jeep cherokee steering box.
Raise and safely support the vehicle, allowing the front suspension to hang freely.
Remove both front tire and wheel assemblies. CAUTION Failure to disconnect the intermediate shaft from the rack and pinion stub shaft can result in damage to the steering gear and/or intermediate shaft. This damage may cause a loss of steering control and possibly, personal injury. NOTE: The wheels of the vehicle must be straight ahead and the steering column in the LOCK position before disconnecting the steering column or intermediate shaft from the steering gear. Failure to do so will cause the SIR coil assembly to become uncentered, which will damage the coil.
If equipped, move the intermediate shaft cover upward, then unfasten the intermediate shaft-to-stub shaft pinch bolt.
Using a suitable puller, separate both tie rod ends from the steering knuckles.
Position a suitable drain pan under the power steering fluid lines. Remove the power steering fluid line retainer, then disconnect the outlet and inlet hoses from the steering gear. Allow the fluid to drain, then plug the lines to avoid contaminating the system.
Fig. 1: Power steering fluid line routing - non-supercharged engine shown
Fig. 3: Power steering hose routing and orientation - supercharged engine shown
Remove the steering gear assembly-to-chassis mounting bolts.
Support the body with suitable jackstands to allow for the lowering of the frame.
Loosen the front frame mounting bolts.
Remove the rear frame bolts, then lower the rear of the frame about 3 inches (76mm). WARNING Do not lower the frame too far, or you could damage the engine components nearest the cowl.
Remove the steering gear assembly by maneuvering it through the left wheel well opening.
Fig. 4: Power steering gear mounting, with retainer tightening sequence and specifications
To install:
Install the rack and pinion assembly into the vehicle, maneuvering it through the left wheel well opening.
Raise the rear of the frame, then install the frame bolts and tighten to 76 ft. lbs. (103 Nm).
Install the rack and pinion assembly-to-chassis bolts. Tighten the rack mounting bolts to 50 ft. lbs. (68 Nm).
Remove the jackstands.
Apply Loctite® thread locking kit 1052624, or equivalent thread locking compound to the steering gear mounting bolts.
Install the steering gear mounting bolts, and washers, then tighten the retainers to 50 ft. lbs. (68 Nm) in the sequence shown in the accompanying figure.
Unplug and attach the power steering gear outlet and inlet hoses, then tighten the fittings to 20 ft. lbs. (27 Nm).
Install the power steering fluid line retainer.
Connect the tie rod ends to the steering knuckles. Tighten the nuts to 35 ft. lbs. (47 Nm). Install a new cotter pin. Tighten the nut up to an additional 1?6 turn, or to 52 ft. lbs. (70 Nm) to align the cotter pin slot. Do not loosen the nut to install the cotter pin.
Install the intermediate shaft-to-stub shaft pinch bolt and tighten to 35 ft. lbs. (47 Nm). If equipped, move the intermediate shaft cover upward into position.
Install both front tire and wheel assemblies, then carefully lower the vehicle.
Refill the power steering pump reservoir, then bleed the power steering system and check for leaks.
Take the vehicle to a reputable repair shop and have the front end alignment checked and adjusted as necessary.
Lock the steering column through the access hole in the steering column lower trim cover using the J 42640. Remove the air cleaner assembly. Refer to Air Cleaner Outlet Resonator Replacement in Powertrain Management.Remove the intermediate shaft shield from the steering gear.Place a drain pan below the steering gear. Remove the pressure and the return hoses from the power steering gear. Cap or tape the ends of the hoses and the gear fittings in order to prevent dirt from entering the system.Remove the lower intermediate shaft coupling bolt. Draw alignment marks on the lower intermediate shaft coupling and the steering shaft. Remove the lower intermediate shaft coupling from the steering shaft. Remove the pitman arm. Refer to Pitman Arm Replacement.Remove the steering gear mounting bolts and the washers from the frame. Remove the steering gear. Installation Procedure
Install the steering gear. Notice: Refer to Fastener Notice in Service Precautions. Install the power steering gear to the frame washers and the mounting bolts. Tighten Tighten the power steering gear to frame mounting bolts to 75 Nm (55 ft. lbs.).Install the pitman arm. Refer to Pitman Arm Replacement.Install the lower intermediate shaft to the power steering gear. Ensure that the alignment marks line up. Install the lower intermediate shaft coupling bolt. Tighten Tighten the lower intermediate shaft coupling bolt to 35 Nm (26 ft. lbs.).Install the pressure and the return hoses to the power steering gear. TightenTighten the pressure hose to 25 Nm (18 ft. lbs.) for the vehicle equipped with the 2.2L engines. Tighten the pressure hose to 30 Nm (22 ft. lbs.) for the vehicle equipped with the 4.3L engines. Tighten the return hose to 25 Nm (18 ft. lbs.).Install the intermediate shaft shield to the power steering gear. Install the air cleaner assembly. Refer to Air Cleaner Outlet Resonator Replacement in Powertrain Management. Unlock the steering column by removing the J 42640 from the steering column lower steering column trim cover access hole. Bleed the power steering system. Refer to Bleeding Power Steering System in Steering / Service and Repair.
Tag the pressure and return lines so they may be reassembled in their original positions.
Disconnect the pressure and return lines from the steering gear. Plug the lines and ports in the gear to prevent the entry of dirt.
Remove the clamp bolts retaining the flexible coupling to the steering gear.
Raise and safely support the vehicle.
Remove the nut from the sector shaft.
Remove the pitman arm from the sector shaft with a suitable pitman arm removal tool. Remove the tool from the pitman arm.
Support the steering gear and remove the steering gear retaining bolts.
Work the gear free of the flex coupling and remove the gear.
If the flex coupling did not come off with the gear, lift it off the shaft.
To install:
Turn the steering wheel to the straight-ahead position
During installation, position the steering gear input shaft as shown on 1992-98 vehicles
Center the steering gear input shaft with the indexing flat facing downward on 1989-91 vehicles. On 1992-98 vehicles, center the steering gear input shaft with the centerline of the 2 indexing flats at 4 o'clock.
Slide the steering gear input shaft into the flex coupling and into place on the frame side rail. Install the retaining bolts and tighten to 50-65 ft. lbs. (68-88 Nm).
Make sure the wheels are in the straight-ahead position. Install the pitman arm on the sector shaft and install the lockwasher and nut. Tighten the nut to 233-250 ft. lbs. (316-338 Nm).
Move the flex coupling into place on the steering gear input shaft. Install the retaining bolt and tighten to 20-30 ft. lbs. (27-41 Nm).
Connect the pressure and return lines to the steering gear and tighten the lines. Fill the reservoir and turn the steering wheel from stop-to-stop to distribute the fluid. Check the fluid level and add fluid, if necessary.
Start the engine and turn the steering wheel from left to right.
First of all, lets look at the obvious. When installing a tire that large the tendency of the tire is to follow every crack and crevice in the road. By raising it up you totally change the steering geometry. This being said, it may still not be the problem. I have run tall tire with lift kits for years. Take a look at the steering box where it mounts to the frame. Larger tires have a tendency to put more pressure on the steering gear box. It can range from causing the mounting bolts to loosen to causing small cracks in the frame. If the steering gear box moves even in the slightest it will be practically impossible to hold in the road. Another possibility is worn piston seals inside the steering gear box. When they leak, or bypass, the gear box becomes sluggish and you will find yourself chasing it all over the place. Ed
It is very important to take this back and have it looked at by the shop that did the repair. The steering box would come pre-adjusted. I'm afraid they may have left something loose...it happens. Try phoning them, they may even want to tow it or send someone out to check it. Driving with the steering box coming unbolted from the frame would be tricky.
Believe it or not there are some problems you should take to the dealer. It never was the gear box, its a defective steering column bushing. That problem had a factory notice and the dealer would have diagnosed it immediately an fixed it free parts +$40.install. Tahoes get that problem.
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