Model Year: 1968
Subject: LUBRICATION OF WINDOW REGULATOR SHAFT - 1968 CORVETTE
Source: Chevrolet Dealer Service Technical Bulletin
Number: 68-T-15
Section: I
Date: Jan. 10, 1968
To: ALL CHEVROLET DEALERS
Difficulty in raising and lowering the door windows may be experienced on some 1968 Corvettes built prior to 10-31-67. This condition is caused by lack of lubrication between the regulator shaft and the regulator hosing (see 1968 Chassis Service Manual, Page 1B-21, Figure 35, Item 6). Galling and metal pick-up on the shaft, due to lack of lube, results in a binding condition of the window regulator assembly.
If the above condition is encountered, inspect both door regulators assembly for proper lubrication. in most cases, the housing should be replaced; however, if galling or metal pick-up on the shaft is slight, the shaft can be repaired by polishing with Crocus Cloth and applying a thin coat of Lubriplate (Part No. 1050109 or Par No. 1050110), or equivalent, for proper lubrication.
PARTS AND LABOR DATA
| QUA. | PART NO. | PART DESCRIPTION | P | FC | L | T | OPERATION NO. | TIME | |
|---|---|---|---|---|---|---|---|---|---|
| 1. | 1 | 3921583 | Housing - L.H. | 52 | X | 01426190 | 1.5 | ||
| 2. | 1 | 3921580 | Shaft | ||||||
| 3. | 1 | 3921584 | Housing - R.H. | 52 | X | 01426090 | 1.5 | ||
| 4. | 1 | 3921580 | Shaft |
Article ID: 719
Created: August 2, 2014
Last Updated: August 2, 2014
Online URL: https://www.corvetteactioncenter.com/tech/knowledgebase/article/1968-corvette-service-bulletin-lubrication-of-window-regulator-shaft-719.html