Rear Tires - Irregular Wear

84olds3

SUBJECT IRREGULAR REAR TIRE WEAR NUMBER: 84-T-1


DATE: Dec.. 15,1983

MODELS/YEARS 1979-84 TORONADO
SECTION: 3A

The rear wheel alignment specification for toe on the Toronado 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 wheel 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 wheel 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 specifications. 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 owners manual for details.