1980 GMC K3500 Sierra Grande Tire Sizes
Factory original equipment (OE) tire specifications.
(7/16 & 1/2 inch studs)(GVWR 10000)
Tire Size
8.75-16.5LT/D
Load Index
Speed Rating
(7/16 & 1/2 inch studs)(GVWR 10000)
Tire Size
9.50-16.5LT/D
Load Index
Speed Rating
(7/16 & 1/2 inch studs)(GVWR 10000)
Tire Size
7.50-16LT/E
Load Index
Speed Rating
(7/16 & 1/2 inch studs)(GVWR 9200)
FrontTire Size
9.50-16.5LT/D
Load Index
Speed Rating
(7/16 & 1/2 inch studs)(GVWR 9200)
RearTire Size
9.50-16.5LT/E
Load Index
Speed Rating
(9/16 inch studs)(GVWR 10000)
Tire Size
8.75-16.5LT/D
Load Index
Speed Rating
(9/16 inch studs)(GVWR 10000)
Tire Size
9.50-16.5LT/D
Load Index
Speed Rating
(9/16 inch studs)(GVWR 10000)
Tire Size
7.50-16LT/E
Load Index
Speed Rating
(9/16 inch studs)(GVWR 9200)
FrontTire Size
9.50-16.5LT/D
Load Index
Speed Rating
(9/16 inch studs)(GVWR 9200)
RearTire Size
9.50-16.5LT/E
Load Index
Speed Rating