GMC Rally Spare Tire Sizes

The GMC Rally has used a 5x127mm (5 x 5") bolt pattern for all models from 1986 to 1996 along with tire diameters ranging from 27.1" to 27.7" tall. Using a temporary spare tire with a diameter close to the standard tire has many benefits, especially for modern vehicle applications. Tire diameter as well as wheel diameter clearance have been taken into account for the specific GMC Rally years and options. In this case, a 145/60R20 temporary spare tire is the recommendation for all applications.

YearMakeModelBolt
Pattern
Tire
Diameters
Recommended
Spare
1996GMCRally
5-127
27.1-27.7"
145/60R20 | 26.9"
1995GMCRally
5-127
27.1-27.7"
145/60R20 | 26.9"
1994GMCRally
5-127
27.1-27.7"
145/60R20 | 26.9"
1993GMCRally
5-127
27.1-27.7"
145/60R20 | 26.9"
1992GMCRally
5-127
27.1-27.7"
145/60R20 | 26.9"
1991GMCRally
5-127
27.1-27.7"
145/60R20 | 26.9"
1990GMCRally
5-127
27.1-27.7"
145/60R20 | 26.9"
1989GMCRally
5-127
27.1-27.7"
145/60R20 | 26.9"
1988GMCRally
5-127
27.1-27.7"
145/60R20 | 26.9"
1987GMCRally
5-127
27.1-27.7"
145/60R20 | 26.9"
1986GMCRally
5-127
27.1-27.7"
145/60R20 | 26.9"
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