1989 GMC R3500 Tire Sizes

Factory original equipment (OE) tire specifications.

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(DRW)

Tire Size
7.50-16LT/D
Load Index
Speed Rating

Base

Tire Size
7.50-16LT/D
Load Index
Speed Rating

High Sierra

Tire Size
7.50-16LT/D
Load Index
Speed Rating

High Sierra (DRW)

Tire Size
7.50-16LT/D
Load Index
Speed Rating

Sierra Classic

Tire Size
7.50-16LT/D
Load Index
Speed Rating

Sierra Classic (DRW)

Tire Size
7.50-16LT/D
Load Index
Speed Rating