Polaris RZR XP 4" Portal Gear Lift

No One Does Portals like GDP
Want to take your Polaris RZR XP to the next level? SuperATV's 4" GDP Portal Gear Lift will do it better than anything else. You can choose between a 15% or 30% gear reduction and even pick the type of housing you prefer. If you want the maximum upgrade, dual idler gears provide maximum strength, making your ride better than ever.

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.

GDP Lets You Ride How You Want
Whether you're tackling mud, rocks, trails, or the desert, GDP has you covered. If you spend your time taking on bounty holes and boulder fields, opt for a 30% gear reduction to get more low-end torque with big tires. If you prefer high-speed action, a 15% gear reduction is the way to go. No matter how you ride, GDP is the right choice for you.

Portals Reduce Drivetrain Wear and Tear
These RZR XP portals put the gear reduction right in the hub, so your entire drivetrain benefits. Your axles, differential, prop shaft, and transmission work less and won't wear as quickly.

The Pinnacle of Portal Strength
The key to a great portal lift is its strength, and we know how to do it. With more GDPs in action than any other portal system, we know exactly what it takes to survive the hardest rides. Our cast and 6061 billet aluminum housings are built for ultimate durability, and they come paired with our advanced steel alloy backing plates for unbeatable strength.

• 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 Bearings
Our portals use:

• Advanced 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

Protect Your Ranger with a Frame Stiffener
Extra ground clearance and bigger tires lead to more action-packed rides. But can your stock frame keep up? To stay confident while you put pedal to the metal, consider adding a SuperATV Frame Stiffener when installing your new portals.

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.

4" Portal Gear Lift Includes:

• (4) Assembled portal hub boxes complete w/ 9310 gears, seals, output shaft, gaskets, and thrust bearings
• (4) Universal hubs and precision-ground stainless steel slotted rotors w/ lugs
• (4) Specialized steel alloy backing plates
• (4) Steel caliper mounting plates with spacers
• (2) Steel steering arms
• Extended brake lines with parking brake and brake cable brackets
• All required hardware including recessed castle nut socket

Max Tire Sizes for 4” Portal Gear Lift
Max Tire Size for Single Idlers	Max Tire Size for Dual Idlers	Required Suspension Setup with GDP Portals
35"	36"	Stock
36”	38”	3” Lift Kit
37"	39"	1.5" Forward Offset A-Arms
38"	40"	1.5” Forward Offset A-Arms and 3” Lift Kit
38"	40"	2” Offset A-Arms
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.

Patent # 11,299,042

Patent # 11,318,787