SERVICE MANUAL UPDATE-SEC. 3C TORSION BAR REPLACEMENT

Subject: TORSION BAR REPLACEMENT REVISED PROCEDURE

Model and Year: 1992-93 "L" VAN

This procedure supplements the information found under "Torsion Bar(s) and Support Assembly Replacement" of the 1992 and 1993 M/L Models Service Manual.

TORSION BAR ASSEMBLY REPLACEMENT:

Remove or Disconnect

Tool Required: J 36202 Torsion Bar Unloading Tool

1. Raise vehicle and support with safety stands.

2. Adjustment assemblies on torsion bar. a. Mark the adjustment bolt (184) setting. b. Increase the tension on the adjustment arm (186) using J36202. c. Remove adjustment bolt (184) and retaining plate (185). d. Move the tool aside.

3. Torsion bar anchor adapter. a. Slide the adapter out toward the rear. b. Remove the adjustment arm (1 86).

4. Torsion bar (182).

* Note the location of the tape at the rear ends of the torsion bars. There are different bars for the left and right sides.

Install or Connect

Tool Required: J 36202 Torsion Bar Unloading Tool

1. Torsion bar (182). * Note the location of the paint stripe at the rear end of the torsion bars. There are different bars for the left and right sides. * Make sure the bars (182) are on their respective sides.

2. Torsion bar anchor adapter (188).

a. Install adjustment arm (186). b. Slide adapter tube (188) over torsion bar (182) and into adjustment arm (186). c. Make sure adapter tube is properly seated into the front face of crossmember and torsion bar is properly seated into rear of the adapter tube. d. The leading edge of the paint stripe (177) must not extend past the front of the frame crossmember (175).

3. Adjustment retainer plate (185 and bolt (184).

a. Increase the tension on the torsion bar using J 36202. b. Install the retaining plate and adjustment bolt. c. Set the adjustment bolt to the marked setting from step 1 of the removal procedure. d. Release the tension on the torsion bar until the load is taken up by the adjustment bolt. e. Remove J 33202.

4. Lower the vehicle.

5. Check the "Z" height. Refer to SECTION 3A.

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.