Fitting 35-Inch Tires on a 5th Gen 4Runner: Build Guide

April 22, 2026

By Rob Krause · Battle Born Clothing & Print · Yerington, NV

⚡ QUICK ANSWER

Fitting 35s (315/70R17 or 35x12.50R17) on a stock-appearing 5th Gen 4Runner (2010–2024) takes a 3″ suspension lift, SPC upper control arms, body mount chop (BMC), pinch weld hammering, fender liner trim and pushback, and often a 1–1.5″ body lift. Expect 4.88 regear for drivability. Total build cost: $8,000–$15,000+ depending on parts and labor. This is not a bolt-on mod.

The 5th Gen 4Runner on 35s is one of the most-researched Toyota builds on the internet. It's also one of the most under-delivered. Most people want the look, few want the full recipe. This guide lays out the complete, proven build path, no skipped steps, no shortcuts that come back to haunt you.

For the basic fitment story (stock tires up to 33s without major surgery), see our Biggest Tires on a Stock 5th Gen 4Runner fitment guide. This post is for when you've already decided 33s aren't enough and you want the full 35″ commitment.

Why 35s Aren't Just “33s But Bigger”

A 5th Gen 4Runner is built around a stock 265/70R17 (30.6″) tire. Going to 33s means a 2-inch jump, and most 33″ fitment work is about clearing the fender lip, upper control arm, and front bumper with minimal trimming. Going to 35s is another 2.4-inch jump on top of that, but the surgery required is exponentially more, because now you're running out of sheet metal to move out of the way.

There are three clearance problems to solve with 35s:

Height: at full compression, a 35″ tire tries to hit the upper fender and firewall area
Width at full lock: 12.5″ tires hit the body mount and fender flare at full steering angle
Rear articulation: on bumpy off-road terrain, the rear tire stuffs deep into the rear fender

Each of these requires a different fix. Lifting the suspension solves static clearance but doesn't solve full-compression clearance. Cutting the body solves full-compression clearance but not full-lock clearance. Running aftermarket UCAs solves some lock clearance but adds cost. A proper 35″ build addresses all three.

Tire Size Options for 35s

Not all “35s” are the same. These are the most-common sizes community builders put on 5th Gens:

SIZE	MEASURED	NOTES
315/70R17	34.4″ x 12.4″	The "easiest 35." Slightly shorter than a true 35. Easiest to fit with moderate trimming.
35x12.50R17	35.0″ x 12.5″	True 35. The community standard for 5th Gen 35 builds. More trimming required than 315/70.
285/75R17	33.8″ x 11.2″	A "soft 35." Taller than a 33, narrower than a 35x12.50. Good middle-ground.
255/85R17	34.1″ x 10.0″	Skinny 34. Clears UCA without aftermarket arms. Less aggressive look.

Community pick: 35x12.50R17 Toyo Open Country M/T for the serious build, or 315/70R17 General Grabber X3 / BFG KO2 for the lower-cost entry into 35″ territory. For a head-to-head on the mid-range sizes, see our 285/75R17 vs 33x12.50R17 comparison.

Step 1: The Suspension Lift (2.5″ to 3.5″ Front)

You need static ride height for 35s to look proportional, and dynamic travel for them to survive off-road. The community splits into three lift tiers:

Budget Tier ($1,200–$2,500): Bilstein 5100 + OME HD

Bilstein 5100s adjusted to the top perch paired with OME Heavy Duty front coils. 2.5″–3″ of front lift, solid off-road performance, reasonable on-road ride. Most popular budget recipe for 5th Gen 4Runner 35″ builds. Real-world builds verify this combo clears 35s with supporting mods (BMC, trimming).

Mid Tier ($2,800–$4,500): Icon Stage 2 or Fox 2.5

Remote reservoir shocks with proper 3″ of front lift and matched rear springs. Icon Stage 2, Fox 2.5 Performance Series, or King 2.5 OEM Performance. This is where 35s start feeling like they belong on the truck instead of fighting it. These kits also include proper rear springs to match front lift and keep the truck level.

Premium Tier ($5,000–$9,000): ARB OME BP-51 or Long Travel

ARB Old Man Emu BP-51 Bypass shocks are the step beyond the aftermarket monotubes. 3.5″ lift, adjustable bypass valving, suited to heavy overland builds. Long-travel setups from Total Chaos or Dirt King go further: more wheel travel, more suspension droop, require custom fenders to accommodate the additional tire travel. The 35x12.50 Toyo MT on BP-51 3.5″ lift is one of the most-verified 35″ 5th Gen builds on the internet.

“My rig has about a 4″ lift, which is a must to fit these tires. We also started with a high clearance cut to help with clearance, and I have since switched to a CBI Baja full bumper. Beyond that, we hammered the pinch welds down, cut some fender lining, and did a body mount chop. I also would recommend planning to regear to at least 4.88 to help with performance.”
— Featured 5th Gen 4Runner 35″ build, Trail 4Runner community feature

Step 2: SPC Upper Control Arms (Mandatory)

When you lift a 5th Gen 4Runner past 2″, factory caster drops into negative territory. Without aftermarket upper control arms, the truck wanders at highway speed, chews front tires, and the stock UCAs can contact the coil bucket at full articulation.

SPC Performance 25480 upper control arms are the benchmark. Set to max caster. Alternatives: Total Chaos, Camburg X1J, JBA, Dirt King. Expect $450–$900 for the pair.

SPC UCAs do two things for a 35″ build: restore proper caster (safer steering) and tuck the ball joint inboard slightly, buying a few critical millimeters of clearance between the tire and the UCA at full lock. Don't skip these.

Step 3: Body Mount Chop (BMC), The Critical Step

The body mount chop is the single most important modification for fitting 35s on a 5th Gen 4Runner. The body mount is a metal bracket where the body meets the frame at the front corner of the wheel well. At full steering lock with 35s, the tire hits this mount first, before anything else.

Two ways to handle the BMC:

DIY with a cutoff wheel. Cut, grind, coat with cavity wax or Por-15. Roughly $30 in consumables and 2–4 hours per side. The cost is low but the cut is irreversible and sloppy DIY cuts compromise structural integrity.
C4 Fabrication Oversized Tire Fitment Kit. A bolt-in replacement body mount designed for 35″ clearance. You cut out the factory mount and weld in the C4 replacement. About $850 for the kit plus welding. This is the clean, warranty-respecting option.

Every verified 35″ build on a 5th Gen has a BMC. Trail 4Runner, Fluid MotorUnion, and C4 Fabrication all document the same sequence: you cannot skip this step.

Step 4: Pinch Weld Hammering

The pinch weld is the folded seam along the lower fender lip. On a stock 4Runner, it sticks inward toward the tire. At full compression or articulation with 35s, this weld is what gouges the sidewall.

The fix is cheap: a 4-lb hammer or a Harbor Freight pinch weld tool, and 30 minutes per corner. You bend the pinch weld flat against the fender. Touch up with paint to prevent rust. That's it. Every 35″ build does this.

Step 5: Front Fender Liner Pushback & Trim

The front fender liner is the plastic wheel well shield. At full lock and compression, 35s hit the liner and its mounting tabs. There are three progressive levels of fender liner mod:

Level 1: Push the liner flat against the inner fender. Use a heat gun to soften the plastic, then push it flat. Takes 30 minutes, buys meaningful clearance, no cutting.
Level 2: Trim the front edge of the liner. Remove 1–1.5″ of material where the tire contacts. Leaves the air intake exposed to water and mud (some owners address this with a snorkel).
Level 3: Remove the fender liner entirely. Maximum clearance, but the air intake and components behind the fender are fully exposed. Not recommended unless you run a snorkel.

The C4 Fabrication Oversized Tire Fitment Kit mentioned earlier includes high-clearance replacement fender liners that keep things sealed while giving maximum tire clearance. This is the cleanest Level 2 option.

Step 6: Fender Flare Trim (or Fiberglass Replacement)

The factory fender flare sticks inward at the bottom. With 35s, this is where the tire rubs during cornering and highway speed bumps. Two approaches:

Trim the factory flare. Mark with tape, cut with a Dremel, sand with 80-grit, refit. Preserves the OEM look but permanently modifies the flare. Common on stealth builds. This is what the Trail 4Runner 35″ build used with the "mild viper cut" approach.
Aftermarket fiberglass fenders. Brands like Prinsu, DV8, or high-clearance fiberglass replacements. More aggressive look, typically $700–$1,800 per set. Bolts in, zero rubbing, factory-looking finish when painted.

Budget-conscious builds trim. Show-truck builds replace with fiberglass. Both work.

Step 7: The 4.88 Regear (Non-Optional for 35s)

A 5th Gen 4Runner with the 1GR-FE 4.0L V6 puts out 270 hp and 278 lb-ft of torque. Stock gearing is 3.727. At stock 30.6″ tires, the truck is properly geared. Jump to a 35″ tire and effective gearing drops to about 3.26. The truck feels gutted, tow capacity cuts in half, hills require manual downshifting, and transmission temperatures rise.

TIRE SIZE	EFFECTIVE GEARING ON STOCK 3.727	WITH 4.88 REGEAR
Stock 30.6″	3.727 (ideal)	Over-geared, higher RPM
33″	~3.46 (slight loss)	~4.53 (slight over)
35″	~3.26 (miserable)	~4.27 (near-stock feel)

Yukon 4.88 gears installed in both front and rear differentials cost $2,500–$3,800 depending on labor. This is the single biggest drivability upgrade on a 35″ build. Every experienced 5th Gen 35 owner agrees: it's not optional, it's the whole difference between a truck that's a chore to drive and one that drives like factory.

Step 8: Wheel Selection & Offset

Factory 5th Gen 4Runner wheels are 17x7 with +15mm offset on most trims, +4mm on TRD Pro. For 35s, most builds go to 17x8.5 or 17x9 aftermarket wheels with 0 to −12mm offset. Why negative offset? It pushes the tire out, away from the UCA and frame, buying clearance you can't get any other way.

Method Race Wheels Con 6 / MR305 / MR701 — 17x8.5 at −12mm, the default choice
Fuel Wheels Vapor / Assault / Trophy — aggressive look, similar offset range
SCS Stealth6 — forged, light, show-quality finish
RRW RR8-H Forged Beadlocks — serious off-road, enable low-pressure wheeling
Icon Alloys Rebound — balanced cost and quality

Avoid positive-offset aftermarket wheels with 35s on a 5th Gen, you'll have constant UCA rub. Avoid 18″ and 20″ wheels for 35″ builds because you lose sidewall flex for off-road use. 17″ is the right answer.

Step 9: Supporting Upgrades

These aren't strictly required for 35s to fit, but they're required for 35s to drive well and last:

Differential drop brackets. Slee, BIOR, or C4 diff drops lower the front diff to restore CV axle angles after lift. Under $250. Critical over 2.5″ lift.
Extended brake lines. Stock brake lines stretch with big lifts. Russell, Goodridge, or ECGS make extended stainless lines. $150–$250.
Steering stabilizer / damper upgrade. Heavier steering dampers reduce shimmy from bigger tires. Icon, Bilstein, or King options run $150–$400.
High clearance front bumper. Stock plastic bumper catches on 35s during approach angles. CBI, C4 Fab, Southern Style, or Expedition One high-clearance bumpers fix this. $1,200–$2,800.
Rock sliders. BudBuilt, RCI, White Knuckle, or C4 Fab. Not a 35″ requirement but you'll want them for off-road use. $600–$1,500.
ScanGauge II or aftermarket tune. Corrects the speedometer reading (a 35″ tire on stock gearing reads ~13% slow). Dealer reflash or aftermarket options like RaceME exist too.

Full Build Cost Breakdown

COMPONENT	BUDGET	MID-TIER	PREMIUM
Suspension lift	$1,400 (Bilstein 5100 + OME HD)	$3,200 (Icon Stage 2)	$6,500 (ARB BP-51 + long travel)
Upper control arms	$450 (SPC 25480)	$700 (Total Chaos)	$900 (Camburg X1J)
Wheels (set of 5)	$1,200 (Method MR305)	$2,100 (Fuel / Icon Rebound)	$4,000 (SCS / beadlocks)
Tires (set of 5)	$1,500 (BFG KO2)	$2,200 (Toyo AT3)	$2,800 (Toyo MT)
Fitment kit (BMC + liners)	$0 (DIY cutoff wheel)	$850 (C4 Fab kit)	$2,500 (kit + fiberglass fenders)
Regear (front & rear)	$2,500 (Yukon 4.88)	$3,200 (Nitro or shop install)	$3,800 (Yukon with lockers)
Supporting mods	$400 (diff drop + brake lines)	$1,500 (+ bumper + sliders)	$4,500 (full armor package)
TOTAL	$7,450	$13,750	$25,000+

Labor not included, these numbers are parts-only. Add $2,500–$5,000 for shop labor on a full install, or DIY with access to a garage and roughly 40–60 hours of weekend time.

Common Mistakes That Come Back to Haunt You

Skipping the BMC. You will end up doing it later, probably after you shred a sidewall at full lock. Do it first.
Skipping the regear. People do it to save $3K. They then sell the truck within a year because they got tired of slogging up hills. Regear early.
Running positive-offset aftermarket wheels. UCA rub, fender liner rub, constant frustration. Get 0 to −12mm offset from the start.
Using only a body lift and no suspension lift. Body lifts add static height but don't increase travel. You still compress into the fenders.
Not upgrading UCAs. Caster angle issues, uneven tire wear, UCA contact at full droop. SPC or equivalent is not optional past 2″ lift.
Going 37s instead. At that point you're looking at solid axle swap, custom fiberglass, and a dedicated trail rig. For 5th Gens, 35s is the practical ceiling.
Ignoring supporting mods. Long brake lines and diff drops are cheap. Skipping them causes real damage.

The Honest Tradeoffs

After all the work, here's what 35s actually cost you day-to-day:

Fuel economy: Expect 3–5 mpg loss vs stock. A stock 4Runner gets about 17 mpg combined; a 35″ build gets 12–14 mpg combined.
Acceleration: With 4.88 regear, acceleration feels near-stock. Without the regear, 0–60 times stretch by 2–3 seconds.
Handling: Noticeably less crisp than stock. Body roll is more pronounced. Highway lane changes take more attention.
Tire wear: 35″ all-terrains last 45,000–60,000 miles with proper rotation. 35″ mud-terrains last 35,000–50,000 miles. Expect rear wear slightly faster than front.
Registration/insurance: Some states and insurance carriers want lift disclosure and alignment certification. Check your state.
Parking garages and drive-throughs: You'll occasionally need to find a regular height exit. Know your truck's new total height.
The win: On the trail, in the snow, at the overland event, the truck comes alive. Ground clearance transforms what's possible.

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Frequently Asked Questions

Can I fit 35s on a 5th Gen 4Runner with just a 3-inch lift?

Yes, but only with supporting mods. Every verified 35″ 5th Gen build includes a 3″ lift PLUS SPC upper control arms, body mount chop, pinch weld hammering, fender liner pushback, and fender flare trimming. The 3″ lift alone is not enough. Plan on roughly 30–50 hours of trimming and fabrication work on top of the lift install.

What's the best 35-inch tire size for a 5th Gen 4Runner?

315/70R17 (measures 34.4″) is the easiest 35″ to fit. 35x12.50R17 (measures a true 35″) is more committed and requires more trimming. For most builders, 315/70R17 in a tire like General Grabber X3, BFG KO2, or Toyo AT3 hits the sweet spot. If you want the full 35″ look and are willing to do more work, go 35x12.50R17 in Toyo MT or BFG KM3.

Do I absolutely need to regear for 35s?

Effectively yes. Stock 3.727 gears with 35s drops effective ratio to about 3.26, which makes the 1GR-FE V6 feel gutless and puts unnecessary heat into the transmission. Yukon 4.88 regear in both differentials is the standard fix. Parts cost $900–$1,800 for the gear sets; shop install adds $1,500–$2,500. It's the single biggest drivability upgrade on a 35″ build.

Is a body lift necessary for 35s on a 5th Gen 4Runner?

Not necessary but helpful on budget builds. A 1–1.5″ body lift adds clearance without changing suspension travel, so you can run smaller lift heights and do less trimming. Trade-off: body lifts can compromise structural integrity if done poorly, and they don't add approach/departure angle the way a suspension lift does. Most purist 4Runner builders avoid body lifts. On a budget-constrained build that prioritizes clearance, a 1.5″ body lift paired with a 3″ suspension lift is a documented recipe.

What does the body mount chop actually do?

The body mount chop removes the factory metal bracket where the body meets the frame at the front wheel well. With 35s, this is the first thing the tire hits at full steering lock. Cutting it back buys 1–2 inches of lateral clearance. C4 Fabrication makes a bolt-in replacement mount that preserves structural integrity. DIY chops with a cutoff wheel work but require careful cavity wax treatment to prevent rust.

How much fuel economy will I lose with 35s?

About 3–5 mpg vs stock, depending on tire weight and tread pattern. Stock 5th Gen gets about 17 mpg combined. Expect 12–14 mpg combined on 35s, less if you're running mud-terrain tires or carrying heavy armor. Mud-terrains give up another 1–2 mpg vs all-terrains due to tread pattern drag.

Will my warranty be voided?

Partially. Toyota warranty covers factory-installed components. Any aftermarket modification (lift, wheels, tires, regear) is not covered by warranty for components affected by that mod. Tires and wheels invalidate tire warranty and drivetrain warranty for lift-induced damage. The engine and transmission warranty remain intact unless the dealer can prove the aftermarket mods caused the failure. Check with your dealer if warranty matters to you.

Can I do this build myself in a home garage?

Most of it, yes. Installing the lift, UCAs, sliders, and body mount chop is 40–60 hours of weekend work with basic hand tools and a cutoff wheel or Sawzall. The regear is the one step most DIYers pay a shop for, it requires a bearing press, shim kits, backlash setup, and an experienced hand. Budget $1,500–$2,500 for a reputable shop regear. Everything else is accessible to a motivated DIYer.

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