Riviera V6-231 3.8L Turbo VIN 3 4-bbl (1982)
Alignment: Technical Service Bulletins
Rear Alignment - Specifications Change
Bulletin 84-4-2
Date Oct. '83
Ref. No. 84-009-30
SUBJECT:
CHANGE TO REAR ALIGNMENT SPECIFICATIONS
MODELS AFFECTED: 1979 TO 1984 RIVIERA
The rear alignment specification for toe on Riviera has been changed to:
Rear Toe Setting:
+ 3/32", +/- 3/32 inch total toe-in which is the same as + 3/16~, +/- 3/16 degree total toe-in.
Whenever rear alignment is checked, toe should be set accordingly. This is the sum (total) toe of both wheels, which should be split as equally as
possible to each when resetting. Rear caster and camber are not adjustable.
Toe settings which exceed the above specification may cause irregular rear tire wear. Usually, this wear may occur within 8,000 to 10,000 miles, with the
customer's comment being an increase in tire noise and/or roughness. Close inspection of the rear tires may reveal a cupping type wear pattern.
When this condition is encountered, rear toe should always be measured and reset to above specification. The tires should then be rotated. If severe
enough, rear tire replacement may be necessary.
Notice:
As on all models, it is recommended that routine tire rotation be performed for maximum tire life. Consult the service manual or owner's
manual for details.
