Section 9 (Wheel Alignment Specifications & Procedures): Adjustment: Toe-In
WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 1985 GMC Vandura Special, 1985 GMC Vandura, 1985 GMC Rally Camper Special, 1985 GMC Rally, and 1985 GMC Magnavan. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Toe-in can be increased or decreased by turning the threaded sleeve to change the length of the tie rods. When tie rods are mounting ahead of the steering knuckle, they must be decreased in length in order to increase toe-in.
- Determine toe-in and adjust as necessary. Inspect tie rod adjuster sleeve clamp bolts and nuts for rust. If in good condition, loosen nuts and bolts. If excessively rusted, measure nut removal torque after breakaway. If more than 7 ft. lbs. (9 N.m), replace nut(s) and bolt(s).
- Apply penetrating oil to adjuster sleeve and clamps, then rotate sleeve until free on tie rods. Center steering wheel and lock in position with steering wheel holder.
- With clamp bolts and nuts of each adjusting sleeve loose, turn adjuster sleeves to obtain proper toe-in adjustment. After adjustment, check that the number of threads showing on each end of sleeve are equal (within 3 threads) and tie rod end housings are at right angles to steering arm.
- Position clamps with bolt centerlines horizontal (within 60° of each other). Ensure adjuster sleeve slot is not within clamp jaws. With clamps between and clear of dimples, tighten clamp bolts and nuts.
- Clamp ends may touch when nuts are tightened to specification but gap adjacent to adjuster sleeve must not be less than .0050" (.127 mm). Replace clamp and/or sleeve if not to specification.