1988 GMC R1500 Suburban Tire Sizes

Factory original equipment (OE) tire specifications.

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(Diesel)

Tire Size
P235/75R15
Load Index
Speed Rating

(GVWR 6800)

Tire Size
P235/75R15
Load Index
Speed Rating

Base

Tire Size
P235/75R15
Load Index
Speed Rating

Base

Tire Size
P235/75R15
Load Index
Speed Rating

Sierra Classic

Tire Size
P235/75R15
Load Index
Speed Rating

Sierra Classic

Tire Size
P235/75R15
Load Index
Speed Rating

Sierra Classic (Diesel)

Tire Size
P235/75R15
Load Index
Speed Rating

Sierra Classic (GVWR 6800)

Tire Size
P235/75R15
Load Index
Speed Rating