To avoid any fitment issues, please make sure to select the exact year, make and model of your vehicle. If you are unsure, please reach out to us for assistance prior to purchasing. Not that this part is built-to-order and NON-RETURNABLE. This part must be installed by a licensed professional to avoid any issues related to the complex installation

Why You’ll Love It

• 4” Portal Lift adds ground clearance directly at the hubs
• 15% or 30% Gear Reduction adds torque and relieves drivetrain stress
• Selectable Idler Setup lets you choose dual- or single-idler gearing
• Cast or Billet Housings let you choose the construction that fits your build
• Limited Lifetime Warranty protects your purchase

GDP Portals Will Revolutionize Your Ride
Whether you’re rock crawling in Utah, mud riding in Texas, or doing chores in Indiana, a 4” GDP Portal Gear Lift is right for you. It doesn’t matter where or how you ride. With your choice of 15% and 30% gear reductions, you can get the right amount of torque for you and your ride. And if you tend to push things harder than your friends, upgrade to dual idler gears for premium strength. These aren’t like other portals—they’ve been refined through years of hard work. We didn’t invent portals, but we did make people give a damn about them.

Dual Idlers Define Strength
Perfection takes time. After years of research and development, we’ve made our dual idler gear portals unlike any other. By placing a second idler gear in the portal box, the load gets spread over twice as much surface area for more reliable torque transfer and the strongest gear set you can get. Two idler gears don’t do a thing if they’re not mated perfectly, though. Precision CNC grinding ensures ours do. Our gears are made from the industry’s toughest 9310 steel alloy. Didn’t think dual idlers mattered? With GDP’s quality and experience, they finally do.

Ride Any Way You Want
GDP Portal Gear Lifts don’t cater to just one kind of rider. They boost performance whether you’re a throttle-down desert rider or a mud-slingin' bounty hole bandit. Get a 15% gear reduction for faster rides with enough torque to start getting wild. If you want the ultimate geared-down, torqued-up ride for monster tires, go with a 30% gear reduction. Upgrade to dual idlers if your friends are tired of dragging you back to the trailer. They give you the extra strength you need.

A Gear Reduction That Protects Your Drivetrain
The difference between a portal gear reduction and a standard gear reduction is that portals put it right in the hub. Since it’s at the very end of your drivetrain, you get less wear and tear on your axles, differential, prop shafts, and transmission. It’s better than riding on stock.

Every Part Is Built Better
Better performance starts with better strength. Our cast and billet aluminum housings are the thickest and strongest you can get. Combine that with 5/16” backing plates made from an advanced steel alloy, and our portals are unstoppable.

• Our housings are reinforced for gear retention and optimized for oil flow
• Advanced steel alloy backing plates are stronger than chromoly
• Enhance with Portal Blood—gear oil formulated for GDP Portals
• There are no gimmicks and no vents because vents do more harm than good—we know because we tested them

Advanced Gaskets, Seals, and Bearings
Our portals use:

• Advanced gaskets and O-rings with excellent oil resistance and low deterioration rates
• A sealed input gear and double-lipped output seal
• 100% sealing coverage throughout so you can forget about oil leaks
• Double-angular contact output bearings to prevent premature wear
• Roller idler and drive bearings to maintain perfect gear meshing

Bolster Your UTV with a Frame Stiffener
Big portals and big tires can make everything, well, big. Make sure your stock frame can keep up by adding a SuperATV Frame Stiffener when you install your new portals. It’ll give you the confidence to keep the pedal down.

4” Portal Gear Lift Includes:

• (4) Assembled portal hub boxes complete with 9310 gears, seals, output shaft, gaskets, and thrust bearings
• (4) Universal hubs and precision-ground stainless steel slotted rotors with lugs
• (4) Specialized steel alloy backing plates
• (4) Steel caliper mounting plates
• (2) Steel steering arms
• (2) Caliper adapter plates (specific models only)
• Extended brake lines
• All required hardware, including recessed castle nut socket
• Frame stiffener (optional)

Max Tire Size Recommendations for 4” Portal Gear Lift

FEATURES

• Available with billet or cast aluminum housing
• Dual idler gear configuration maximizes strength
• Cool, quiet, precision ground gears made from 9310 alloy billet steel
• 1.5 in. diameter 4340 hardened steel drive shaft
• Housings use advanced gaskets or O-rings that don’t let anything through
• Universal hubs can be set up to work with the following bolt patterns: 4/156, 4/137, 4/115, and 4/110
• Gear reduction reduces stress on your drivetrain
• Dual idler gear configuration adds a 3/4” front and rear offset—1.5” total extension
• Lighter than the competition