G 10 Van V8-379 6.2L DSL (1987)
Tires: All Technical Service Bulletins
Tires/Propshaft - Speed Reference Chart (Vibration)
Number:
88-45
Section:
0A
Date:
Sept., 1987
Subject:
TIRE AND PROPSHAFT SPEED REFERENCE CHART
Model and Year: ALL LIGHT DUTY TRUCKS
TO:
ALL CHEVROLET DEALERS
Reed Tachometer usage requires calculating the speed of rotating components on a vehicle and relating it to the frequency of a vibration (reference
Chevrolet Dealer service Bulletin 87-139 for Reed Tachometer usage instructions). The chart below was developed to simplify calculating driveline,
wheel and tire RPM.
The procedure for using this chart is as follows:
-
Determine the vehicle tire size and rear axle ratio.
