Delta 88 V8-350 5.7L DSL (1985)
Alignment: Customer Interest
Tires (All-Season) - Irregular or Premature Tire Wear
SUBJECT
IRREGULAR/PREMATURE TIRE WEAR -
NUMBER: 86-T-35
ALL-SEASON TIRES
DATE:
May 14, 1986
1985 TORONADO & 1985-86 CUTLASS CIERA
MODELS/YEARS
REAR POSITION ONLY
1985 DELTA 88 & 1985-86 CUTLASS
SECTION: 3E
SUPREME FRONT POSITION ONLY
CONDITION
Some 1985 Toronado, 1985-86 Cutlass Ciera, 1985 Delta 88 and 1985-86 Cutlass Supreme models with original equipment All-Seasons tires ("M & S"
following the TPC Spec. No.) may experience premature/irregular tire wear on non-drive axles. The wear may be identified as a cupping condition,
usually on the outer shoulder of the tire. If allowed to continue, premature wear out of tread may occur.
CAUSE
The single, most contributing cause of this type of wear, except for abusive driving, is excessive toe-in. Lack of tire rotation and low inflation pressures
will also exaggerate this condition.
VEHICLES INVOLVED
1985 Toronado and 1985-86 Cutlass Ciera models with All Seasons tires. REAR POSITION ONLY.
1985 Delta 88 and 1985-86 Cutlass Supreme models with All Seasons tires. FRONT POSITION ONLY..
SERVICE PROCEDURE
1.
Tire wear should be inspected:
FIGURE 1 - TYPICAL "ALL SEASONS" TIRE SHOULDER WEAR