CAMPAIGN: AXLE SHAFT END PLAY CHECKING PROCEDURE

1978-1980 CABALLERO

This bulletin is a supplement to Truck Service Bulletin 80-C-11 and reflects a labor allowance change for the additional time required to install studs (hub bolts) in axle shafts. This affects labor operations V247300 and V247200 listed below.

This labor time will be effective with receipt of this bulletin.

Warranty Information

Dealers should submit an accurately filled out Warranty Repair Order on each vehicle completed.

Labor Operation *Time Trouble Number Description Allowance Code ------ ----------- --------- ---- V247000 Inspect axle code, no further action required 0.3 Hr. 96

V247100 Inspect axle code and check end play. 0.3 Hr. 96

V247200 Inspect axle code, check end play and button 0.5 Hr. 96 thickness and replace pinion shaft if necessary.

V247300 Inspect axle code, check end play and button 0.8 Hr. 96 thickness. Replace one axle shaft and pinion shaft (incl. install axle studs)**

V247400 Inspect axle code, check end play and button 0.9 Hr. 96 thickness. Replace two axle shafts and pinion shaft (incl. install axle studs).**

*For dealer to receive Administrative Time Allowance associated with this service, add 0.1 hour to the Labor Operation Time Allowance.

** When replacing an axle shaft NEW STUDS (hub bolts) part number 9590271 are to be used.

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.