1st Gen 4Runner biggest tire size: stock and lifted
The biggest tire owners run on a Toyota 4Runner 1st Gen at every lift height, with the trimming it takes, the wheel specs you need and the lift kits that get you there.
Owners' consensus is 31x10.50R15 — Toyota-4Runner.org members say 31s fit with no lift and you can get away without regearing. 33x12.50s on a stock truck rub the front valance, wheel-well corners and rear pinch weld; IH8MUD owners estimate about 1.5 in of lift (plus some trimming) for 33s, and say the 22R-E will want lower gears.
Biggest 1st Gen 4Runner tire at every lift
| LIFT | BIGGEST TIRE | WHAT IT TAKES |
|---|---|---|
| Stock | 31x10.50R15 | Toyota-4Runner.org owners run 31s with no lift and no regear; 33x12.50s rub the front valance, wheel-well corners and rear pinch weld |
| ≈1.5–2 in | 33x12.50R15 | IH8MUD: 'about an inch and a half' of lift plus hammering the pinch weld/valance; a narrower 33x10.50 rubs less. Owners call stock gearing 'a dog' on 33s |
1st Gen 4Runner wheel and tire specs
Lift kits, wheels and tires for the 1st Gen 4Runner
Flexier leaf packs, longer shocks and high-steer turn a solid-axle truck into a proper crawler — Trail-Gear claims up to 20 in of articulation from its Classic kit.
Ball-joint spacers and torsion bars are the classic budget lift; a stronger idler arm takes the slop out on bigger tyres.
Bigger tyres and a 22R-E need help: transfer-case reduction gears and a rear locker are the traditional answers.
Fitment comes from owners and specialists; wheel width, offset, trimming and bump stops change what fits. Check clearance at full lock and full flex before you buy. Some links are affiliate links.