To repair the rocking movement that may be experienced between the upper and lower six-way passenger and/or drivers seat adjuster channels, replace the existing torque tube springs.
Replace the torque tube spring for the drivers outer front and passengers inner front with part number 20300208 and for the drivers inner front and rear and passengers outer front and rear with part number 20369775.
To replace the torque tube springs follow the procedure outlined on page 9-21 of the 1985 'C' Fisher Service Manual.
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.