GMC C1500 Spare Tire Sizes

The GMC C1500 has used a 5x127mm (5 x 5") bolt pattern for all models from 1979 to 1987 along with tire diameters ranging from 28.3" to 28.9" 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 C1500 years and options. In this case, using a non-temporary Full-Size tire as your spare, is the recommendation for all applications.

YearMakeModelBolt
Pattern
Tire
Diameters
Recommended
Spare
1987GMCC1500
5-127
28.3-28.9"
Full Size
1986GMCC1500
5-127
28.3-28.9"
Full Size
1985GMCC1500
5-127
28.3-28.9"
Full Size
1984GMCC1500
5-127
28.3-28.9"
Full Size
1983GMCC1500
5-127
28.3-28.9"
Full Size
1982GMCC1500
5-127
28.3-28.9"
Full Size
1981GMCC1500
5-127
28.3-28.9"
Full Size
1980GMCC1500
5-127
28.3-28.9"
Full Size
1979GMCC1500
5-127
28.3-28.9"
Full Size
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