Gear Down and Go Big You like to get wild on your Polaris RZR 900, but are you getting as wild as you could. Take the reins off your ride with SuperATV’s 8” GDP Portal Gear Lift. With 8 inches of extra ground clearance and a torque-boosting 45% gear reduction, you can do what you think about doing but stop out of fear, and go places nobody else can.
GDP—the Most Trusted Name in Portals Going big isn’t risky. You’re following in the footsteps of thousands of riders that have chosen GDP before you. More riders roll on GDP portals than any other portal system. They’re out on the trail and parks every day, and with all that ride time, you can bet they’re the most trail-proven portals on the planet.
Perfect for Mud A big lift plus a big gear reduction equals one mud-munchin' monster. With clearance for huge tires and tons of torque to turn them, you’ll cruise over deeper mud and push through anything. GDP and mud are a match made in heaven.
A Gear Reduction That Protects Your Drivetrain GDP puts the gear reduction in the hub instead of in the transmission. Because it comes after your drivetrain, it reduces stress on your axles, differential, prop shaft, and transmission. So even if you’re riding hard, you’re doing less damage than stock. That means that with GDP, you can keep the pedal down.
Learn more about how tire size and gear reduction can unleash your machine’s potential.
Unmatched Gear Material The gears in a portal gear lift are pretty important—that’s why ours are top-of-the-line. They’re made from precision-ground 9310 alloy steel so they mate perfectly each and every time. You get quiet portals that run smooth. It’s luxury and performance.
Stronger Housings by Design We’ve got the best housings you can get. How do we know? We’ve got more boxes than anybody else out on the trail every day getting put to the test. We have the data and the experience to make them strong by design. Whether you go with cast aluminum or USA-made billet aluminum housings, you’re getting the strongest portals you can get.
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 In order to have the strongest backing plates on the market, we have to use the best material possible—and we do. GDP uses an advanced steel alloy that is not used by any other competitor. It’s stronger than chromoly and at 5/16” thick with hand-welded gussets and pivot blocks, you can count on them being the strongest part of your RZR.
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
Rubber O-rings that completely seal the housings
A sealed input gear and double-lipped output seal
100% sealing coverage throughout so you can forget about oil leaks
Bearings That Rock If you don’t do bearings right, you won’t have quality portals. That’s why we use a double-angular contact bearing on our output shaft. It’s designed to take huge hits whether that’s from hitting jumps, bouncing over logs, or diving into mud holes. It won’t break or wear prematurely. With GDP, even the smallest detail is built for battle.
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 use wheels from just about any side-by-side which means the used wheel market just got a lot bigger for you. We invented the tapered output shaft that our hubs attach to, which provides a more secure lock that won’t wobble or wear over time.
Reinforce Your UTV with a Frame Stiffener Just because GDP Portals are built to push the limits, it doesn’t mean your RZR 900 is too. We highly recommend using a frame stiffener with your 8” portals so that your RZR’s frame can enjoy the ride as much as you do. Trust us, we’ve bent tons of frames. Get a frame stiffener and save your time and money.
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
(8) Rear backing plate bushings
Extended brake lines
All required hardware, including recessed castle nut socket
Gear reductions listed are general guidelines to maximize torque and maintain factory top speed. A larger than recommended gear reduction will result in more torque and lower top speed. Give us a call for more information.
Available with billet or cast aluminum housing
Cool, quiet, precision ground gears made from 9310 alloy billet steel
1.5 in. diameter 4340 hardened steel drive shaft
1.5 in. forward and rear offset
Housings use Thermo-Tork® gaskets and rubber O-rings that don’t let anything through
Universal hub fits all major bolt patterns
Gear reduction reduces stress on your drivetrain
22" or larger wheel required
Wheels cannot exceed 5" backspacing
Polaris RZR 900 : 2015-2020
Polaris RZR 900 XC : 2015-2017
Polaris RZR S 900 : 2015-2020
Polaris RZR 4 900 : 2015-2018
Polaris RZR S4 900 : 2018
NOTE: Wheels need to have a center hole of at least 3.25" (82.55mm) or require a 1” wheel spacer.
Free Shipping At our company, we are proud to offer our valued customers free ground shipping on most orders over $100, a fantastic incentive to help you shop for your favorite items. Please note, this offer is applicable only to the lower 48 states within the United States. We strive to ensure that your products reach you in a timely and cost-effective manner. However, we would like to inform you that certain exclusions may apply due to the size, weight, or destination of the order. We kindly encourage you to review our shipping policies or reach out to our customer service team for any clarifications. We are committed to providing the best shopping experience possible, with quality service at every step of your journey with us.
Shipping Shipping to US with verified payment & confirmed address. Domestic shipments are a mix of services from UPS, USPS, and FedEx. All packages may require a signature.
Delivery Most of our products ship within 1 Business Day - Occasionally, we are out of stock on an item and will sometimes use a drop ship from one of our suppliers. Drop ships from a handful of suppliers can add up to 5 days processing time.
Refunds & Returns PLEASE CALL US FIRST for an RMA (Return Merchandise Authorization) #.
All returns made to Revolution Off-Road, LLC must be in the original box with all parts included in new condition. All returns must be sent with a copy of the original receipt, explanation of the problem and an RMA #. All returns for must be received by Revolution Off-Road, LLC within 15 days of the product being received by the customer. (determined by UPS tracking #) Customer is 100% responsible for ALL shipping costs on returned items. Thus, if you return an item and did not originally pay shipping costs, the original shipping cost incurred by us will be deducted from your refund.
Orders canceled by the customer will be subject to a 10% cancelation fee.
Any shipping costs paid by customer on original order, including ground shipping or expedited shipping will not be refunded including in the event of a return.
Credit will be issued after the product and its contents are inspected and found to be in brand new condition as shipped to the buyer. All returns will be subject to a 20% - 30% restocking fee, depending on the manufacturer. Shipments refused by you (the Customer) and returned back to Revolution Off-Road will carry an automatic 20% re-stocking fee deducted from the total credit owed.
Credit will not be issued in the following situations: Product has been installed and or used. Product has been damaged from an attempt to install and/or use. Product is shipped back without original box, manual and/or parts. Seal on electrical parts is broken, or it is evident that electrical part has been installed to vehicle. Product serial number does not match what was originally shipped to buyer.-Product is deemed not re-sellable due to customer's actions. Electrical components after they have been installed.
Product Warranties Revolution Off-Road, LLC honors all manufacturer warranties. Any product that carries a manufacturer warranty must be warrantied through its respective manufacturer. Installed components which have failed must be removed and shipped back to its manufacturer for inspection before replacement. Revolution Off-Road, LLC is not responsible for shipping products to manufacturers for inspection or the return shipping to the end user. Labor time is not paid by Revolution Off-Road, LLC.
Damaged Products If a products arrived damaged you must contact Revolution Off-Road, LLC WITHIN 5 BUSINESS DAYS. Do not install the product as the manufacturer will handle shipping a replacement item. If you install the product then it will void any shipping claim as the product will need to be reviewed by sending pictures of any damage. Once again review your product before attempting to install it, if any damage is found, do not install.
Cores There is a 30 day turnaround policy on cores from the time it was delivered.