Description
Give the 6th-gen 4Runner the clearance it deserves—without wrecking daily manners. The 74Weld NGA Portal Axle Kit raises your axles (not just the chassis), unlocking true underbody clearance, a 1.22:1 hub reduction (22%), and an approx. 3.88" lift from the axle centerline. Run 35–37" tires with far less driveline strain while keeping confident on-road behavior, factory-like CV angles, and precise steering feel.
Traditional lifts move geometry out of spec. Portals lift the axles themselves, protecting diffs, control arms, and steering from trail strikes—exactly why Ultra4 and desert racers trust 74Weld engineering.
Why portals on a 2025+ 4Runner
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Real ground-clearance: Raising the axle centerline lifts the most vulnerable parts over rocks, ruts, and ledges.
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22% torque multiplication at the hub: Offsets the larger rolling diameter of 35–37" tires, often minimizing the need to re-gear and easing drivetrain load.
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Keep OEM road feel: Flatter arm and tie-rod angles at ride height help preserve the 4Runner’s composed on-road manners.
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Race-bred hardware: Billet 7075 knuckles with steel inserts and billet 6061 portal boxes—precision-machined, trail-proven.
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Brakes & ABS friendly: Dedicated front and rear rotors with factory ABS compatibility for confident, predictable braking.
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Built-in stability: +2.75" per side (≈ +5.5" overall) track width improves stance and scrub characteristics while retaining stock suspension components.
Vehicle compatibility
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Toyota 4Runner 2025+
What’s included
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Front & Rear Billet Aluminum Portal Assemblies
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Front & Rear Rotors
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4340 Heat-Treated Rear Full-Float Axle Shafts
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All Required Hardware & Detailed Instructions
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Maxima Full Synthetic Oil
Key specifications
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Gear reduction: 1.22:1 (22% at the hub)
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Lift: ~3.88" (axle-centerline gain)
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Track width: +2.75" per side (≈ +5.5" overall)
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Construction: Billet 7075 knuckle (steel inserts); Billet 6061 portal box
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Rear axle: 4340 heat-treated full-float shafts included
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Electronics: Factory ABS compatible
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Geometry: Optimized width/scrub while retaining stock suspension components
Wheel & tire guidance
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35–37" tires are commonly achievable; exact fitment depends on wheel specs, alignment, bumpers, and trimming.
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Confirm rotor/caliper clearance and plan offset/backspacing to account for the +2.75" per side increase. Need a proven wheel package? We’ll spec it for you.
Why buy from Runnin4Tacos (R4T)
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Portal-experienced installers: We build, align, and shake down portal-equipped Toyotas—leave with a turn-key 4Runner.
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Complete build planning: Wheels, tires, armor, gearing strategy, alignment—we’ll blueprint the whole system.
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Talk to a human: Call 303-909-6047 to schedule professional installation or get fitment advice.
Shipping & local pickup
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Colorado local pick-up: A $369 transport fee applies to all local pick-up orders for 74Weld Portal Axles.
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Lead times vary—contact us for current availability and scheduling.
FAQs
Do I still need to re-gear?
Often no. The 22% hub reduction offsets the effective ratio change from larger tires, letting many owners run 35–37" without opening the diffs. Payload, terrain, and tire size ultimately decide.
How are portals different from a suspension lift?
Suspension lifts raise the chassis but keep axles at the same height, which can worsen CV/steering angles. Portals raise the axles, delivering real clearance under diffs/arms while preserving geometry.
Will ABS and traction systems still work?
Yes—the kit is factory ABS compatible. Verify system operation post-install; initialization/recalibration may be recommended.