1988 GMC Sierra Bolt Patterns


5 Lug Pattern
5x127mm = 5x5 inches
6 Lug Pattern
6x139.7mm = 6x5.5 inches

Year/Make/Model/Option Bolt Patterns
1988 GMC Sierra 2wd Pick-up5x127mm (5x5")
1988 GMC Sierra 4wd Pick-up6x139.7mm (6x5.5")