Brakes - Lining Differs on ABS (JL9) & Standard
89pontiac14Bulletin Number: 89-5-11
Reference Number: 905001R
Publish Date: 8/89
Subject: BRAKE LINING PULLAHEAD (INFORMATION)
Models
Affected: 1989 BONNEVILLE
The 1990 Bonneville front lining material, edge code DM 342EE, has been pulled ahead on the 1989 Bonneville models with ABS Brake Systems only. The purpose of the pullahead is to reduce the potential for brake squeal on 1989 vehicles with ABS brake systems.
It is recommended that the 1990 lining, edge code DM 342 EE, not be used to service 1989 and prior years Bonneville models without ABS Brake Systems; i.e., vehicles with base brake systems. The 1990 lining, DM 342 EE, has a lower coefficient of friction than the current o.e. and service lining Edge Code DM 127 EE, and should only be used to service 1989 vehicles with ABS and 1990 Bonneville models with both base and ABS brake systems.
Vehicles produced at the following assembly plants PRIOR to VIN numbers equipped with both JM4 and JL9 should use lining 12321422.
PLANT VIN
Pontiac Willow Run 287123
Vehicles produced at the following assembly plants AFTER VIN numbers equipped with both JM4 and JL9 should use lining 12321453.
PLANT VIN
Pontiac Willow Run 287123
Parts are currently available from GMSPO.