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. Get the clearance to run bigger tires and the torque you need to turn them. The lift and gear reduction are in the hub, so they maintain suspension geometry and reduce drivetrain stress. With huge clearance, huge torque, and optional billet aluminum housings, you can install monster tires to take on any challenge.
45% and 60% Gear Reductions Destroy Mud
With 8” portals and your choice of a huge 45% or massive 60% gear reduction, 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 our 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.
Our gears are precision ground and made with 9310 billet steel alloy. They’re designed to take all the torque and abuse you can give them without chipping teeth or blowing up. Our precise design and manufacturing makes them cool and quiet even when you’re hammering down the throttle in the mud hole.
Stronger Housings by Design
GDP housings are the strongest housings you can get because we know how to make them tough. We’ve been using them and refining them for years. Whether you go with cast or USA-made, 6061 billet aluminum (which looks awesome), you’ll get strength built with experience.
- Our housings are reinforced in all the right places
- They’re built with better oil flow and gearing forces in mind
- There are no gimmicks and no vents because vents do more harm than good—we know because we tested them
The Strongest Portal Backing Plates You Can Get
If you want portals that will stand up to years of hard riding and abuse, you need GDP. Our backing plates use an advanced steel that you can’t find anywhere else. They’re stronger than chromoly and 5/16” thick—AKA they’re going to outlast the rest of your side-by-side no matter how you ride.
Advanced Gaskets and Seals Whether you go with cast or billet, both housings use:
- Advanced Thermo-Tork® gaskets with excellent oil resistance and a lower deterioration rate than Kevlar gaskets
- A sealed input gear and double-lipped output seal
- 100% sealing coverage throughout so you can forget about oil leaks
Bearings That Rock
A bad bearing is the fastest way to ruin your ride. That’s why we went with the best for the output—a double-angular contact bearing that can withstand huge forces from any angle. That means years of hard riding and hard hits with no premature wear. It’s one more way we make sure GDP is the best.
Universal Hubs and Slotted Rotors
Our precision-ground, stainless steel slotted rotors stay cool to give you the braking power you need when you need it. They come with 4/156, 4/137, 4/115, and 4/110 bolt patterns and lugs—you can fit wheels built for almost any side-by-side on these hubs. We made them that way to make your life easier. We invented the tapered output shaft that our hubs attach to. It provides a more secure lock that won’t wobble or wear over time.
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 us—we’ve 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? We’ve got a dedicated team just for portal support. Give us a call so we 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, Thermo-Tork® 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) Caliper adapter plates
(2) Steel steering arms
Extended brake lines
Frame stiffener (optional)
Winch mount (optional)
All required hardware, including recessed castle nut socket
|Polaris RZR XP Turbo Portal Gear Suspension Recommendations|
|Max Tire Size||Required Suspension Setup with 8″ Portals|
|42″||1.5″ Forward Front A-Arms|
|44″||1.5″ Forward Front A-Arms and 3″ Lift Kit|
|50″||10″ Lift Kit|
|Max tire sizes are measured at full compression and full turn. The given tires sizes are the largest we fit without rubbing. With minor trimming or a small amount of rub, larger tire sizes can be used.|