1981 GMC C1500 Suburban Tire Sizes
Factory original equipment (OE) tire specifications.
(GVWR 6400)
Tire Size
P235/75R15
Load Index
Speed Rating
(GVWR 6400)
Tire Size
P235/75R15
Load Index
Speed Rating
(GVWR 6800)
Tire Size
P235/75R15
Load Index
Speed Rating
High Sierra (GVWR 6400)
Tire Size
P235/75R15
Load Index
Speed Rating
High Sierra (GVWR 6400)
Tire Size
P235/75R15
Load Index
Speed Rating
High Sierra (GVWR 6800)
Tire Size
P235/75R15
Load Index
Speed Rating
Sierra Classic (GVWR 6400)
Tire Size
P235/75R15
Load Index
Speed Rating
Sierra Classic (GVWR 6400)
Tire Size
P235/75R15
Load Index
Speed Rating
Sierra Classic (GVWR 6800)
Tire Size
P235/75R15
Load Index
Speed Rating
Sierra Grande (GVWR 6400)
Tire Size
P235/75R15
Load Index
Speed Rating
Sierra Grande (GVWR 6400)
Tire Size
P235/75R15
Load Index
Speed Rating
Sierra Grande (GVWR 6800)
Tire Size
P235/75R15
Load Index
Speed Rating