POSSIBLE STUCK IN GEAR 76MM OR 89MM 4SP MANUAL TRANS.

Model and Year: 1985 ASTRO VAN RPO (MRZ). 1984-85 C/K 10 AND 1983-85 G 10-20 RPO (MY6)

TO: ALL CHEVROLET DEALERS

The 76mm and 89mm four-speed transmissions may develop a "stuck in gear" condition. This condition may be caused by the external shifter assembly slipping into neutral. This happens because the 1-2 shift lever is chamfered, allowing the selector pin to slide past the lever into a neutral position while the transmission remains in gear.

An improved shifter has been released eliminating the chamfer on the 1-2 shift lever. The shifter may be used on past models to replace worn or damaged shifter assemblies. The shifter part number for each model are as follows:

MODEL PART NUMBER ----- ----------- M 15522264

C/K 15538302

G 15522263

Use applicable labor operation and time.

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.