Subject: Output Shaft Speedo Gear Clip Holes
Model and Year: 1982 THM 700-R4 Transmission
Source: Chevrolet Dealer Service Information Bulletin
Bulletin No: 82-I-126
Section: VIIc
Date: Sept., 1982
TO: ALL CHEVROLET DEALERS
Beginning in September, 1982, some 700-R4 transmission output shafts will be manufactured with two (2) speedo clip holes.
To properly install a speedo gear on these shafts, the clip holes must be referenced relative to the yoke spline end of the shaft as follows:
Corvette: Use the hole nearest the end of the shaft.
All Others: Use the hole farthest from the end of the shaft.
Chevrolet Motor Division
General Motors Corporation
Article ID: 1114
Created: January 18, 2015
Last Updated: January 18, 2015
Author: Rob Loszewski
Online URL: https://www.corvetteactioncenter.com/tech/knowledgebase/article.php?id=1114