GMC C1500 bolt pattern, wheel sizes and wheels that fit
GMC C1500 wheel fitment: bolt pattern 6x139.7 (1999), 5x127 (1979–1998), factory wheel and tire sizes for every year, the aftermarket sizes DriveRight lists as tested, wheels in stock that fit, and 2 real wheel builds on the C1500.
See wheels on your C1500Quick answers
What is the GMC C1500 bolt pattern?
It depends on the year: 6x139.7 on 1999 and 5x127 on 1979–1998.
What size wheels fit a GMC C1500?
Factory wheels: 16x6.5 +33 (1999) and 15x6 +10 (1979–1998). DriveRight's tested aftermarket sizes for the 1999 C1500: 16 to 22 in, offsets -52 to +20.
What offset fits a GMC C1500?
On the 1999 C1500, DriveRight's tested offsets run -52 to +20 depending on width and diameter. Lower offsets push the wheel out toward the fender; the table below lists factory offsets by year.
What lug nuts and hub bore does the GMC C1500 use?
Lug thread: M14x1.5 (1988–1999) and 1/2 UNF (1979–1986). Hub bore: 78.1 mm (1979–1999).
What tire size does the GMC C1500 use?
Factory tires: 235/75R16 (1999), 235/75R15 (1988–1998), 205/75R15 (1980–1986) and 235/75R15 (1979).
GMC C1500 wheel specs by year
| Years | Bolt pattern | Hub bore | Factory wheel | Factory tire | Lug thread | Tested aftermarket sizes |
|---|---|---|---|---|---|---|
| 1999 | 6x139.7 | 78.1 mm | 16x6.5 +33 | 235/75R16 | M14x1.5 | 16 to 22 in, offsets -52 to +20 |
| 1988–1998 | 5x127 | 78.1 mm | 15x6 +10 | 235/75R15 | M14x1.5 | 15 to 22 in, offsets -52 to +12 |
| 1980–1986 | 5x127 | 78.1 mm | 15x6 +10 | 205/75R15 | 1/2 UNF | 15 to 20 in, offsets -12 to +12 |
| 1979 | 5x127 | 78.1 mm | 15x6 +10 | 235/75R15 | 1/2 UNF | 15 to 16 in, offsets -6 to +20 |
Specs: DriveRight vehicle data, base trim per year. Trims can differ; pick yours in the visualizer for an exact list.
Wheels in stock that fit the 1998 GMC C1500
Vision American-Muscle 149 PatriotGloss Black Milled Spoke Polished LipFrom $198 / wheelIn stockShopSee it on your car
GMC C1500 wheel builds
1998 GMC C1500Moto Metal MO962 8X165.1 18X9 +0 CHROME
1998 GMC C1500Volk Racing TE37XT M-SPEC 5x127 18x9-1 Bronze