Tire Size Upgrade Guide for Trucks & SUVs
Before You Upgrade
Before buying bigger tires, consider these factors:
- Will they fit without rubbing? (Check our vehicle finder)
- Do you need a lift kit?
- Will your gear ratio work with the new size?
- What's your budget (tires + potential mods)?
Common Upgrade Paths
Stock Height (No Lift)
Most trucks can go 1 inch taller in diameter without modifications. Example: 265/70R17 (31.6") → 275/70R17 (32.2") or 265/65R18 (31.6").
Leveling Kit (1-2")
A leveling kit raises the front to match the rear. Allows up to ~33" tires on most trucks. May need minor fender trimming.
3" Lift
The sweet spot for most builds. Fits 33-35" tires comfortably on most full-size trucks. Usually needs wheel spacers or aftermarket wheels with proper offset.
4-6" Lift
Fits 35-37" tires. Requires more extensive modifications: fender trimming, possible bump stop extensions, and regearing is strongly recommended.
Regearing
If you go more than 2 inches taller, regearing restores power and fuel economy. Common regear ratios:
- 33" tires: 4.10 or 4.56 gears
- 35" tires: 4.56 or 4.88 gears
- 37" tires: 4.88 or 5.13 gears
Use our gear ratio calculator to find the right ratio.
Popular Truck Tire Sizes
- 265/70R17 (31.6") — Common stock size, good all-around
- 285/70R17 (32.7") — Popular mild upgrade, fits most trucks stock
- 285/75R16 (32.8") — Budget-friendly upgrade on 16" wheels
- 33x12.50R17 (33") — Classic off-road size, needs leveling kit
- 315/70R17 (34.4") — Aggressive look, needs 2-3" lift
- 35x12.50R17 (35") — Serious off-road, needs 3"+ lift