Wheels - Steel Wheels Require Metric Wheel Nuts

91cadillac11

Bulletin No.: T-92-21
File in Group: 3
Number: 5
Corp. Ref. No.: 133505
Date: Nov. 1991


SUBJECT: STEEL WHEEL REPLACEMENT

MODELS AFFECTED: 1991-1992 BROUGHAMS


1991 and 1992 model steel wheels require use of Metric wheel nuts, 1990 and prior model year steel wheels require the use of English wheel nuts.

If a 1990 and prior model year wheel is assembled to a 1991 or 1992 model, the Metric wheel nuts will not mate properly to the 1990 or prior model year wheel.

When specifying 1991-1992 steel wheels, use only steel wheels (P/N 9591652) with Metric wheel nuts (P/N 9590477) on 1991-1992 vehicles.

Parts are currently available from GMSPO.