Polaris RZR XP Turbo 8" Portal Gear Lift

Gear Down and Go Big

SuperATV’s GDP 8” Portal Gear Lift for the Polaris RZR XP Turbo is geared down so you can go big. It gives you a lift and a 45% or 60% gear reduction in one box. Want the most extreme? Opt for a 70% gear reduction complete with dual idler gears for the most balls to the wall portals on the market. Get the clearance to run bigger tires and the torque you need to turn them. With huge clearance, huge torque, and optional billet aluminum housings, you can install monster tires to take on any challenge.

What is a Dual Idler®?

Perfection takes time. After years of research and development, SuperATV has made its 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 these do. The 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.

45%, 60%, and 70% Gear Reductions Destroy Mud

With 8” portals and your choice of 45%, 60%, or 70% gear reductions, you get clearance for huge tires and a massive boost in torque. It’ll turn monster tires like they’re stock. There’s nothing that can stop SuperATV's 8” portals. The challenge isn’t rolling through mud—it’s finding mud holes deep enough for your new mud monster.

A Gear Reduction That Protects Your Drivetrain

Portals put the gear reduction right in the hub. That puts it after your entire drivetrain and it makes your drivetrain work less and wear less. That means more miles out of your axles, differential, transmission, and prop shafts.

Learn more about how tire size and gear reduction can unleash your machine’s potential.

Stronger Housings and Backing Plates

GDP Portals are the strongest you can get because SuperATV knows how to make them tough. SuperATV has been using them and refining them for years. Whether you go with cast or USA-made, 6061 billet aluminum housings (which look awesome), you’ll get unmatched strength through superior design. Combine that with 5/16” backing plates made with an advanced steel alloy, and you’ve got the brawniest portals on the market.

The housings are reinforced for gear retention and optimized for oil flow

Advanced steel alloy backing plates are stronger than chromoly

Ultra-strong integrated rear hub backing plates—no more failure-prone aluminum hubs

Enhance with Portal Blood —gear oil formulated for GDP Portals

There are no gimmicks and no vents because vents do more harm than good—SuperATV knows because it tested them

Advanced Gaskets, Seals, and Bearings

The 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

You Need to Reinforce Your UTV with a Frame Stiffener

Get a SuperATV Frame Stiffener with your 8" Portal Gear Lift. The stock frame just doesn't have what it takes. Bump too hard and the OEM frame will bend. Trust SuperATV—it has done it. A frame stiffener reinforces your frame enough to let you ride your 8" portals with monster tires and no worries.

Top-Rated Customer Service

Still need a little help getting exactly what you need? SuperATV has a dedicated team just for portal support. Give us a call so SuperATV can get the perfect set of portals in your hands today.

8” 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) Rear caliper adapter plates

(2) Front caliper adapter plates (dual idler configuration only)

(2) Steel steering arms

(4) Shims (for specific year models only)

Extended brake lines

Frame stiffener (must select at checkout)

All required hardware, including recessed castle nut socket

Max Tire Size Recommendations for 8” Portal Gear Lift

Max Tire Size

Required Suspension Setup with 8" Portals

40"

Stock

42"

1.5" Forward Front A-Arms

44"

1.5" Forward Front A-Arms and 3" Lift Kit

50"

10" Lift Kit

If you need help figuring out which gear reduction is right for you, check out SuperATV's portal gear reduction calculator .

Max tire sizes are measured at full compression and full turn. The given tires sizes are the largest SuperATV fits without rubbing. With minor trimming or a small amount of rub, larger tire sizes can be used.

Patent # 11,299,042

Patent # 11,318,787

Features

Available with billet or cast aluminum housings

Dual idler gear configuration maximizes strength

Cool, quiet, precision-ground gears made from 9310 alloy billet steel

1.5 in. forward and rear offset

Increases width by 4 in. per side (8 in. total)

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

Fitment information

Polaris RZR XP Turbo : 2016-2021

Polaris RZR XP 4 Turbo : 2016-2021

Wheel Requirements:

22" or larger wheel required

Wheels cannot exceed 5" backspacing

Wheels need to have a center hole of at least 3.25" (82.55mm) or require a 1” wheel spacer