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Gen 3 Portals Are Geared for All
Ride the way you want with SuperATV’s GDP 4” Portal Gear Lift for the Polaris Scrambler. This addition will take your quad from standard to outstanding as you unleash power you never knew you had. And you’ve got options! Choose from cast or billet aluminum housings, and then pick your gear reduction. No matter how you ride, GDP portals bring out the best in your machine.

GDP—the Most Trusted Name in Portals
You don’t have to take our word for it when we tell you GDP portals are the best portal gear lifts on the market. Just look at the thousands of riders across the country (and beyond) who have put in countless miles on these things! More riders choose GDP portals over any other brand, and that speaks volumes when it comes to just how trail tested and customer trusted our portals are.

Perfect for Mud
Taking on mud with an ATV running GDP portals is a whole new ball game. You’ll experience power that you never thought possible as you cut through the thick mud that used to slow you down. And what’s more, you won’t have to worry about getting swamped since you’ll have that added ground clearance! Talk about a good time.

A Gear Reduction That Protects Your Drivetrain
One of the many perks of portals is how they put the gear reduction right in the hub. This keeps your drivetrain from being placed under a bunch of extra stress. Knowing that your axles, differential, prop shaft, and transmission aren’t being abused lets you focus on the tasks at hand—tearin' it up and having a blast.

Unmatched Gear Material
We deliver nothing but the best, most top-of-the-line gears in our GDP portals. They’re made out of a strong and reliable 9310 alloy steel, and we precision grind them to ensure that the teeth mate perfectly every time. So what does all of this get you? A smooth, quiet ride, no matter how hard you’re pushing your machine.

Stronger Housings by Design
We dare you to find housings stronger than what we make for our GDP portals. Just like everything else that goes into this product, our housings are well researched and long tested. And you get a choice—go with cast or USA-made, CNC-machined 6061 billet aluminum. Regardless of what you pick, you’re getting portal housings with strength and reliability that is unmatched.

  • 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 our backing plates using an advanced steel alloy that’s even stronger than chromoly. Believe us when we say this isn’t your average metal! It’s specialized for ultra-high force applications, so you’ll never have to worry about them failing you. Add to that a thickness of 5/16” and you’ve got yourself some backing plates that just won’t quit.

Advanced Gaskets and Seals
Whether you go with cast or billet, both housings use:

  • Advanced 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
Top-quality bearings are at the heart of top-quality portals. That’s why we use roller bearings to hold our idler gear—because we don’t compromise when it comes to quality. Our output bearing is a double-angular contact bearing that can handle huge loads in any direction without wearing down prematurely. The strength and design of these bearings come together to give you a product that is built to last.

Universal Hubs and Slotted Rotors
Our precision-ground, stainless steel slotted rotors stay cool no matter how hard you ride. They’re guaranteed to deliver the braking power you need, when you need it. We also include universal hubs with our portals—the 4/156, 4/137, 4/115, and 4/110 bolt patterns and lugs let you run just about any size ATV wheel you can find. And we invented the tapered output shaft that attaches to our hubs. It gives you a more secure lock to keep your hubs from wobbling or wearing over time.

4” Portal Gear Lift Includes:
(4) Assembled portal hub boxes complete with 9310 gears, seals, output shaft, 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) Steel steering arms
Extended brake lines
All required hardware, including recessed castle nut socket


Polaris Scrambler Portal Gear Reduction Recommendations
Max Tire Size Required Suspension Setup with 4" Portals Recommended 4" Portal Gear Reduction
Up to 28" Stock 15%
29.5" 2" Lift Kit 15%
30" to 38" 6" Lift Kit 15%
Gear reductions listed are general guidelines to maintain factory top speed. Installing a larger than recommended gear reduction will result in extra torque and lower top speed. Give us a call for more information.


WARNING: This product can impact machine operation. Customer and/or user is responsible for ensuring that this product is compatible with their machine as currently configured, properly installed, and understands any impact this product has or might have on the machine's operation.


  • Available with billet or cast aluminum housing
  • Cool, quiet, precision ground gears made from 9310 alloy billet steel
  • Increases width by 4 in. per side (8 in. total)
  • 1.5 in. diameter 4340 hardened steel drive shaft
  • Housings use advanced gaskets that don’t let anything through
  • Universal hub fits all major bolt patterns
  • Gear reduction reduces stress on your drivetrain
  • Weighs 194 lb. total, which is 50+ lb. lighter than the competition

Wheel Requirements:

  • 14” or larger wheel required
  • Wheels cannot exceed 5” backspacing
  • Not compatible with dual beadlock wheels


  • Polaris Scrambler 1000 MD : 2015
  • Polaris Scrambler 1000 XP : 2014+
  • Polaris Scrambler 850 : 2013+

NOTE: Wheels need to have a center hole of at least 3.25" (82.55mm) or require a 1” wheel spacer.