Door Glass, Front - Tape Drive Over Travel/Disengagement
87olds2SUBJECT POWER FRONT DOOR GLASS REGULATORS NUMBER: 86-T-9B
WITH ADDED UP STOP
DATE: February 6, 1987
1986 DELTA 88 AND NINETY-EIGHT 2-DOOR
MODELS/YEARS WITH POWER WINDOW, 1987 DELTA 88 AND
SECTION: 10
NINETY-EIGHT WITH POWER WINDOWS
This bulletin supplements Dealer Technical Bulletin 86-T-9A dated October 15, 1986.
Late production 1986 door glass regulator assembly on two-door models with power windows included an up stop. This expanded to all power front door glass regulators after October 1, 1986, on the 1987 Delta 88 and Ninety-Eight models.
The added up stop prevents tape drive over-travel and disengagement of the tape drive from the door glass. If a car has this condition and does not have an up stop, replace it with the later design. Part numbers and usage are indicated in the following chart:
POWER FRONT DOOR GLASS REGULATOR ASSEMBLY WITH UP STOP
Part Number Year Model and Side
20480596 1986 Delta 88 2-Door - Right
20480597 1986 Delta 88 2-Door - Left
20733072 1986 Ninety-Eight 2-Door - Right
20733073 1986 Ninety-Eight 2-Door - Left
20733070 1987 Delta 88, Ninety-Eight 4-Door - Right
20733071 1987 Delta 88, Ninety-Eight 4-Door - Left
20733074 1987 Delta 88, Ninety-Eight 2-Door - Right
20733075 1987 Delta 88, Ninety-Eight 2-Door - Left
WARRANTY INFORMATION
Use applicable labor operation for replacing regulator assembly.