1999 GMC C1500 Tire Sizes

Factory original equipment (OE) tire specifications.

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Sierra SL

Tire Size
P235/75R15
Load Index
105
Speed Rating
S

Sierra SLE

Tire Size
P235/75R15
Load Index
105
Speed Rating
S

Sierra SLT

Tire Size
P235/75R15
Load Index
105
Speed Rating
S