Free ShippingFITMENT
- Polaris RZR PRO XP : 2020+
- Polaris RZR PRO XP 4 : 2020+
NOTE: Wheels need to have a center hole of at least 3.25" (82.55mm) or require a 1” wheel spacer.
FEATURES
- 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 driveshaft
- 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
Want to make your killer PRO XP get even more wild? With an 8” GDP Portal Gear Lift installed, you’ll be riding higher with more torque, more power, and some monster mud-throwing tires. With tons of ground clearance and a 45% gear reduction, your Polaris RZR PRO XP will make new trails and go everywhere your buddies can’t.
GDP—the Most Trusted Name in Portals
More riders roll on GDP Portals than any other portal system. That’s because we’ve made and sold thousands of kits, and they’re out on the trail every weekend. Next time you’re at the ride park, take a look around—your certain to see more than a few trail-proven GDP Portals.
A Gear Reduction That Protects Your Drivetrain
A portal gear reduction reduces the stress on your axles, differential, prop shaft, and transmission unlike a traditional transmission gear reduction. That’s because the reduction comes after your drivetrain and not before. That means you can keep the pedal down and do less damage than stock.
Unmatched Gear Material
Our top-of-the-line gears use premium, precision-ground 9310 alloy steel to make sure they mate perfectly, run smooth, and won’t break. That means they’re the quietest and most durable portals you can get, even when you push them hard.
Stronger Housings by Design
We make our portal housings as strong as possible because we know how to design them, manufacture them, and assemble them to be strong. They’re strength comes from experience that you can’t fake. So whether you choose cast aluminum or USA-made billet aluminum, you’re getting a housing that can’t be beat.
- 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
We make your backing plates with a premium steel alloy that’s stronger than chromoly and built for incredibly high-force applications. At 5/16” thick, these plates are tough enough to hold your suspension and portals together 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
- 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
The smallest details on GDP are built to be bulletproof because we know from experience that you can’t cut corners anywhere. That’s why our output bearing is a double-angular contact bearing that will survive heavy hits and big bumps and keep your wheels riding true.
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. With all the most popular bolt patterns built in to every hub, you can use wheels from almost any source. 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
Even though the RZR PRO XP is one of the toughest and strongest machines Polaris has ever built, it doesn’t mean its frame can handle the heavy-duty awesomeness of 8” GDP Portals. That’s why we highly recommend a frame stiffener. We’ve ridden hard enough to know that it happens, and that you don’t want it to happen. Get a frame stiffener and don’t worry about it.
| Polaris RZR PRO XP Portal Gear Suspension Recommendations | |
|---|---|
| Max Tire Size | Required Suspension Setup with 8" Portals |
| 40" | Stock |
| 40" | 3" Lift Kit |
| 43" | 1.5" Forward Front A-Arms |
| 43" | 1.5" Forward Front A-Arms and 3-5" Lift Kit |
| 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. | |
| 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 |
| (2) Aluminum hub adapters |
| Extended brake lines |
| Steering stop brackets |
| All required hardware, including recessed castle nut socket |
Our shipping department processes shipments on weekdays between 9am and 4pm Eastern time. We try and ship most products within 24-48 hours of the order being processed. Some items may take a little longer to ship due to seasonality and some of our products are custom made/built upon order. Each product is listed in red on the product page how long it takes to ship out.
If an item is on back order, we will notify you via a phone call or email.
Tracking numbers for processed orders are typically provided within 72 hours of being available. We do not process any orders on Saturday or Sunday.
You may receive multiple tracking code emails depending on the quantity of item(s) ordered.
RETURN POLICY
- Items must be returned within 30 days of receiving them
- Windshields with the protective covering removed are not returnable
- Special ordered & custom items are non-returnable
- All return expenses are the responsibility of the customer unless the incorrect part was shipped in error
- Exchanges will not be shipped until the return has been received
- A restock fee may be applicable depending on the situation/manufacturer
- RE-STOCK FEES below are the MINIMUM manufacturer charges deducted from your refund
- The Original shipping cost will be applied to any returned order that received free shipping when the order was placed
- All items must be returned in new/undamaged/uninstalled condition in original packaging
- All returns must be inspected by our team before a refund/exchange will be processed
- Returned items that do not meet these requirements may be denied a refund/exchange
SuperATV - 30%
-We ask for your year, make and model at the end of you order. We try our best to check all orders for fitment as a courtesy, but it is ultimately the customers responsibility to check fitment on all products they are ordering to make sure it will fit their vehicle. Fitment information (Year, Make and Model) are listed on each product page, if you are not sure you are always more than welcome to give us a call and speak to someone in our sales department.
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
