- 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 Thermo-Tork® gaskets or O-rings that don’t let anything through
- Universal hub fits all major bolt patterns
- Gear reduction reduces stress on your drivetrain
Wheel Requirements:
- 22" or larger wheel required
- Wheels cannot exceed 5" backspacing
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, we’ve made our 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 ours do. Our 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 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.
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 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 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.
Our housings are reinforced for gear retention and optimized for oil flow
Advanced steel alloy backing plates are stronger than chromoly
Enhance with Portal Blood—gear oil formulated for GDP Portals
There are no gimmicks and no vents because vents do more harm than good—we know because we tested them
Advanced Gaskets, Seals, and BearingsOur portals use:
Advanced Thermo-Tork® 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 StiffenerGet 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 ServiceStill 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) Rear caliper adapter plates |
| (2) Front caliper adapter plates (dual idler configuration only) |
| (2) Rear hub adapters |
| (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 our portal gear reduction calculator. |
| 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. |
FITMENT
- Polaris RZR XP Turbo : 2016-2021
- Polaris RZR XP 4 Turbo : 2016-2021
NOTE: Wheels need to have a center hole of at least 3.25" (82.55mm) or require a 1” wheel spacer.
INCLUDES
Item
DETAILS
TERMS OF WARRANTY
Limited Lifetime Warranty
When filling gear box use only 80W-90 gear oil. Using grease will cause failure of gears and bearings. Using grease will void your warranty.
SuperATV takes pride keeping your GDP Portal Gear Lift in working order. That’s why we give you, the original purchaser, a lifetime of portal protection contingent on the following conditions. SuperATV warrants this product and its parts (excluding bearings, seals, & gaskets). Warranty is limited to material and / or workmanship defect at the time of shipment from the factory, and in no event shall seller have any liability for consequential damages of any kind resulting from a breach of this warranty. This warranty will be void on all products that show evidence of misapplication, improper installation, abuse, lack of proper maintenance, negligence, or alteration from original design. This warranty is in lieu of any other warranties, either expressed or implied, INCLUDING ANY IMPLIED WARRANTIES OF MERCHANTIBILTY OR FITNESS FOR ANY PARTICULAR PURPOSE.
Procedures for obtaining warranty service:
Should you have any problems with your Gear Driven Performance product, please call SuperATV Customer Service at 855-743-3427. Please have a copy of your original purchase receipt available, with dealer name (if applicable), date of purchase, and invoice number when calling for technical help. Most often, installation, or break in procedural issues (See break in procedure information, located in the instructions) can be handled quickly by speaking with one of our customer service representatives.
If it is determined that repairs are required to your Gear Driven Performance portal, you MUST acquire an RGA number from our customer service team. RGA's and repair services are ONLY rendered by SuperATV. Any shipping costs incurred after 30 days (starting from the original purchase date) on any Portal returned for repair is the customer's responsibility. ALL Portals must be returned in the original box, with the original packaging, or a similarly well protected box. ALL portals must have the RGA number clearly written on the outside of the package. NO COD packages will be accepted, and no package will be accepted without an RGA number written on the outside of the box. Shipping information, including address and method, will be given to you by our customer service team and/or listed on our website when you create your RGA.
Upon arrival of your warranty parts we will have them inspected by our technicians to determine if the damage was a manufacturing defect or rider/installation error. The inspection usually takes place 1-2 days after the package arrives. SuperATV will then call you with the results of the inspection. Depending on the outcome of the inspection, you may be required to pay a replacement fee for the broken parts (prices may vary depending on parts that need to be replaced). We do our best to get your issues corrected as soon as possible so you can get back out on the trails. We also match shipping labels for our customers. If you ship the warranty parts to us with an overnight label, we will return the favor and send you the replacements parts on an overnight shipment at no charge.
If you have product that is outside of warranty coverage or it is determined that product shows evidence of misapplication, improper installation, abuse, lack of proper maintenance, negligence, or alteration from original design. Customer will be notified and we will repair for a $250 fee.
Replacement bearings, seals and gaskets can be found at www.SuperATV.com.
Thank you for your business!
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Instructions
