1990 GMC S15 Base Wheels & Rims
Fitment shared across: Base, High Sierra, Sierra Classic
Shop Wheels for 1990 GMC S15 Base
Showing 8 of 8+ wheels compatible with the 1990 GMC S15
The 1990 GMC S15 Base and its High Sierra and Sierra Classic siblings roll on a 5x120.65 bolt pattern with a 70.3mm center bore. Your stock setup runs 15x6 wheels, but that's just the starting point. We stock American Racing, US Mag 1PC, Performance Replicas, Vision, E5 Wheels, WELD Performance, Forgestar, and Ridler options that fit perfectly.
Every wheel we offer for your S15 is verified to bolt on securely before shipping free to the lower 48 states. Whether you upgrade to 15-inch or step up to 20-inch diameter, you'll find sizes ranging from 15x6 all the way to 20x8.5. Browse our selection and transform your truck's stance today.
1990 GMC S15 Base Wheel Fitment Guide — What Works & What to Avoid
Your 1990 GMC S15 Base uses a 5x120.65 bolt pattern with a 70.3mm center bore. The factory wheel is 15x6 with a 13-millimeter offset. You can upgrade through several sizes—15x6.5, 15x7, 15x8, 16x7.5, 16x8, 17x8, 17x8.5, 18x8, and 20x8.5 all fit your truck. Since your S15 isn't staggered, any compatible size works evenly across all four corners.
Only the 5x120.65 bolt pattern will fit this GMC, so verify any wheel you choose matches that spec. Your truck requires hub-centric rings if you pick a wheel with a center bore larger than 70.3mm—those rings ensure proper centering and safe operation. Moving significantly wider or running aggressive offsets risks contact with the fender or suspension components, so stick within the listed compatible sizes.
Every wheel we offer for your S15 is confirmed to bolt on safely and ships free to the lower 48 states. We stock American Racing, US Mag 1PC, Performance Replicas, Vision, E5 Wheels, WELD Performance, Forgestar, and Ridler—all backed by our fitment guarantee.
1990 GMC S15 Base Wheel Fitment Specifications
The 5x120.65 bolt pattern determines which wheels physically bolt onto your truck, while the 70.3mm center bore ensures a hub-centric fit. The factory equips this truck with 15x6 wheels at a +13 offset.
Lug Type
nut
Thread Size
M12x1.5
Torque Spec
81 ft-lbs
TPMS
No
1990 GMC S15 Base Compatible Wheel Sizes
| Wheel Size | Offset Range | Compatible Tires | Notes |
|---|---|---|---|
| 15x6 | +null to +15 | 195/75R15 | — |
| 15x6.5 | +null to +15 | 195/75R15, 30/9.50R15, 30/10.00R15 | — |
| 15x7 | -6 to +13 | 205/75R15, 235/70R15, 225/70R15 | — |
| 16x7.5 | -6 to +13 | 215/60R16, 225/60R16, 235/60R16 | — |
| 15x8 | -6 to +13 | 205/75R15, 235/70R15, 225/70R15 | — |
| 16x8 | -6 to +13 | 215/60R16, 225/60R16, 235/60R16 | — |
| 17x8 | -6 to +10 | 225/55R17, 235/50R17, 30/10.00R17 | — |
| 18x8 | -6 to +10 | 235/50R18 | — |
| 17x8.5 | -6 to +10 | 225/55R17, 235/50R17, 30/10.00R17 | — |
| 20x8.5 | -6 to +null | 255/35R20, 30/10.00R20 | 1. Check fitment, possible clearance issues |
Best Wheel Brands for the GMC S15
- Fuel 1PC — Maverick, Assault, Blitz
- Fuel Forged — FF12, FF19
- Method Race Wheels — MR305, MR701
- American Racing — AR924, VN507
- Heritage Wheel
Complete Your 1990 GMC S15 Base Build
- GMC S15 suspension upgrades — pairs well with a wheel upgrade
- GMC S15 exhaust systems — pairs well with a wheel upgrade
- GMC S15 suspension — pairs well with a wheel upgrade
- GMC S15 brakes — pairs well with a wheel upgrade
- Wheel & tire packages — pre-mounted, balanced, shipped ready to bolt on
- Installation accessories — hub rings, extended studs, TPMS kits, spacers