Skylark L4-138 2.3L DOHC VIN D MFI (1988)
Brake Caliper: Technical Service Bulletins
Brakes - Selected Models with Revised Components
Bulletin:
88-5-4
Date:
Dec., '87
Ref.No. 88-031-5
Corp. Ref. No. 875001R
SUBJECT:
1988 BRAKE SYSTEM CHANGES
MODELS AFFECTED:
1988 SKYHAWKS 1988 SKYLARKS
1988 Skyhawks and Skylarks beginning with the following vehicle identification numbers (VIN) at the assembly plants listed will be equipped with a
different brake master cylinder, brake booster assembly and brake caliper assembly.
MODEL
VIN BREAKPOINTS
Somerset/Skylark
JM011292
Skyhawk
JK409094
The changes to the brake system were incorporated to provide an improved pedal feel and increased booster assist on initial brake apply.
PARTS USAGE
The new caliper part numbers listed below must be used to service ALL 1988 Skyhawks and Skylarks, regardless of VIN.
The NEW brake booster and master cylinder part numbers listed in this bulletin MUST be used to service only those Skyhawks and Skylarks models
produced, beginning with the VIN breakpoints provided.
NOTICE:
Vehicles built prior to the VIN breakpoints MUST be serviced with the prior brake booster and brake master cylinder part numbers listed in
this bulletin. Mixing the new booster and master cylinder parts with prior parts on early built (prior to VIN breakpoints) vehicles may result
in a brake application requiring increased pedal travel to stop the car.
PARTS INFORMATION
1988 NEW
1988 OLD
PART NUMBER
PART NUMBER
Caliper
18015752 (Left)
18011667 (Left)
18015753 (Right)
18011668 (Right)
Booster
18015498 (Code NT)
18013875 (Code LF)
Master Cylinder
18015760 (Code NT)
18014370 (Code D[.)
