1989 GMC R1500 Suburban Tire Sizes

Factory original equipment (OE) tire specifications.

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(2, 3, 5 & 6 Passenger)

Tire Size
P235/75R15
Load Index
Speed Rating

(8 & 9 Passenger)

Tire Size
P235/75R15
Load Index
Speed Rating

Sierra Classic (2, 3, 5 & 6 Passenger)

Tire Size
P235/75R15
Load Index
Speed Rating

Sierra Classic (8 & 9 Passenger)

Tire Size
P235/75R15
Load Index
Speed Rating