1989 GMC K1500 Tire Sizes

Factory original equipment (OE) tire specifications.

Report Issue

Sierra Ext. Cab

Tire Size
LT245/75R16/C
Load Index
Speed Rating

Sierra Reg. Cab

Tire Size
LT225/75R16/C
Load Index
Speed Rating

Sierra SLE Ext. Cab

Tire Size
LT245/75R16/C
Load Index
Speed Rating

Sierra SLE Reg. Cab

Tire Size
LT225/75R16/C
Load Index
Speed Rating

Sierra SLX Ext. Cab

Tire Size
LT245/75R16/C
Load Index
Speed Rating

Sierra SLX Reg. Cab

Tire Size
LT225/75R16/C
Load Index
Speed Rating