Subject: Excessive Drive Line Vibration
Model and Year: 1959 Corvette
Source: General Motors of Canada Service Bulletin
Bulletin No: NA
Section: Part B - Page 83
Date: September 30, 1959
EXCESSIVE DRIVE LINE VIBRATION - 1959 Corvette Models
If excessive drive line vibration is encountered on the 1959 Corvette, it is probably due to excessive rear U-joint angle. Elimination of the vibration can be accomplished by installing either a 2 o or 3 o shim between the axle pads and springs on both sides, with the thick side to the front.
The nominal angle of the rear U-joint is 7-1/2 o . Care should be taken in not going under 7-1/2 o due to interference at full bump position.
measurements of the propeller shaft and pinion nose angles may be accomplished as follows:
The propeller shaft and pinion angle and the elongation of the radius rode mounting bracket hole is shown in Fig. 44.
Article ID: 941
Created: October 6, 2014
Last Updated: October 6, 2014
Online URL: https://www.corvetteactioncenter.com/tech/knowledgebase/article/1959-corvette-service-bulletin-excessive-driveline-vibration-941.html