1998 GMC Safari Wheel & Tire Sizes
Complete fitment guide for the 1998 GMC Safari: factory tire sizes, compatible wheel diameters, widths and offsets, and the 5x127 bolt pattern — for every trim.
Bolt Pattern
5x127
Centre Bore
78.3 mm
Lug nuts
1/2" - 20 UNF
Torque: 140 Nm
Wheel Diameters
15"–20"
1998 GMC Safari Wheel Fitment by Trim
Compatible wheel diameter, width and offset ranges for each 1998 GMC Safari configuration.
4.3 · Passenger Van
4.3L · V6 · Petrol
| Spec | Front & Rear |
|---|---|
| Wheel diameter | 15–20" |
| Wheel width | 6.5–9" |
| Wheel offset | 0–20 mm |
| Tire width | 215–265 mm |
1998 GMC Safari Fitment FAQ
What is the bolt pattern on a 1998 GMC Safari?
The 1998 GMC Safari uses a 5x127 bolt pattern (5 lug nuts on a 127 mm circle) with a 78.3 mm centre bore.
What wheel sizes can I put on a 1998 GMC Safari?
Depending on trim, the 1998 GMC Safari accepts wheels from 15" up to 20" in diameter with the correct width and offset — larger diameters typically require lower-profile tires to keep the overall rolling diameter stock.
What lug nut size does a 1998 GMC Safari use?
The 1998 GMC Safari uses 1/2" - 20 UNF lug nuts, torqued to 140 Nm.
Fitment data is provided as a guide. Always verify sizes against your vehicle's door-jamb placard or with our fitment experts before ordering.