Not sure what rimDiameter size options are for your 1987 GMC R1500 GVWR 6100 with 7?
Choose from the options below.
Version/Option
Tire Size
205/75R15
225/75R15
195/75R15
205/75R15
225/75R15
195/75R15
225/75R15
235/75R15
205/75R15
225/75R15
235/75R15
205/75R15
235/75R15
225/75R15
235/75R15
225/75R15
235/75R15
235/75R15
Version/Option
Tire Size
205/75R15
225/75R15
195/75R15
205/75R15
225/75R15
195/75R15
225/75R15
235/75R15
205/75R15
Version/Option
Tire Size
225/75R15
235/75R15
205/75R15
235/75R15
225/75R15
235/75R15
225/75R15
235/75R15
235/75R15
Version/Option
Tire Size
205/75R15
225/75R15
195/75R15
205/75R15
225/75R15
195/75R15
Version/Option
Tire Size
225/75R15
235/75R15
205/75R15
225/75R15
235/75R15
205/75R15
Version/Option
Tire Size
235/75R15
225/75R15
235/75R15
225/75R15
235/75R15
235/75R15
Find your version / option
There are two places to find your tire size. Look directly on your tire sidewall or inside your driver’s side door jamb for your vehicle’s tire size.
Passenger Tire Sidewall
High Flotation Tire Sidewall
Inside Your Door Jamb