Tread separation

An NHTSA Engineering Analysis into Uniroyal vehicles. Closed 23 August 1988.

Investigation
EA88021
Type
Engineering Analysis
Opened
5 February 1988
Closed
23 August 1988

What NHTSA investigated

Summary of information from manufacturer:information submitted byuniroyal during the preliminary evaluation stated... There have beenover 1,000,000 tires produced in this country during the period in questionand total adjustments for all reasons are about .8%.THESE are notextraordinary adjustment figures.analysis:analysis reveals that the adjustments for belt and treadseparations are considerably higher for 1985 10 ply rib tires, incomparison to the 8 ply rib and 8/10 ply lug and rib tires producedin 1986.LT235/75R15 uniroyal laredos were recalled in december, 1986.LT235/85R16 goodrich tires were recalled in july, 1987.RECOMMENDATION:SEND an ir.===

Vehicles covered

MakeModelModel years
UniroyalLT23585R161985–1987

Source

From NHTSA’s investigation file, rebuilt daily. To report a problem with your own vehicle, go to nhtsa.gov/report-a-safety-problem. All open investigations.