Gear Down and Go Big
We know you like to go big, and it doesn’t get any bigger than an 8” GDP Portal Gear Lift. That’s a heck of a lot of room for some huge tires and a ton of torque thanks to the 45% and monstrous 60%. Your Polaris RZR XP 1000 will feel like a whole new machine when you’re towering over the competition and throwing up rooster tails better than anybody else.
GDP—the Most Trusted Name in Portals
What makes GDP so good? Ask the thousands of riders out on the trail today rocking GDP portals. With hundreds of thousands of ride hours, there’s no portal lift in the industry that’s more used and more trusted. More riders roll on GDP than any other portal system. If you want trail-proven fortitude, you want GDP.
45% and 60% Gear Reductions Are Perfect for Mud
What’s the first thing you need if you’re serious about mud? A big lift. The second thing? Some big Assassinator Tires of course and the gear reduction to turn them. Our 8” portals have got you covered. You’ll have room to install huge 40” tires. And the 45% or 60% gear reduction gives you the most extreme torque to tear up the bounty hole. That way, you can push through and ride over deeper, thicker mud holes and take home the bounty.
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.
Better Gear Material
At the heart of a portal gear lift are, well, gears. That’s why we made the best gears we could. They’re made with precision-ground 9310 alloy steel. They’re top-of-the-line gears that make your portals quiet and smooth. We made them unstoppable because that’s how you ride.
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—we know what makes them break and how to make them strong enough to last. 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. The backing plates use an advanced steel that you can’t find anywhere else. It’s stronger than chromoly and 5/16” thick—AKA this thing is 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.
Frame Stiffener Required
You need 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
All required hardware, including recessed castle nut socket
|Polaris RZR XP 1000 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″||7-10″ 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.|