Campaign - Front Drive Axle Nut Replacement: Overview

89buick12

Model Year 1989

Bulletin No. 89-C-7

File in Group 4

Number 2

Date Sept., '89
SUBJECT: FRONT DRIVE AXLE NUT REPLACEMENT

MODELS AFFECTED: 1989 RIVIERA AND REATTA
CONDITION


General Motors has determined that some 1989 Riviera and Reatta model vehicles may have been assembled with front drive axle nuts that may loosen slightly. If this occurs, the clamp load for the wheel bearing may decrease resulting in reduced bearing life or bearing failure.