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Gen 3 Portals are Geared for All More power. Bigger tires. Greater ground clearance. These are just a few of the benefits you get when you install SuperATV’s GDP 4” Portal Gear Lift on your Polaris General. No matter what kind of riding you’re into, we’ve got the portals for you. A 30% gear reduction lets you go all out with maximum torque and bigger tires, and a 15% gear reduction is perfect for agile trail riding. So take your pick! You also get a say in what kind of housings are used on your portals—choose from cast or billet aluminum. No matter what you choose, GDP portals will completely overhaul your riding experience.
GDP—the Most Trusted Name in Portals There’s a reason why more people are riding on GDP portals than any other brand. No matter which housings or gear reduction you go with, you can count on them being the best portals you can get. They’re durable, highly tested, and more proven than anything else on the market. Why wouldn’t you want these portals on your machine?
Perfect for Mud If you’ve never tackled mud while riding on GDP portals, you’re seriously missing out. Our portals give you the clearance and torque needed to cut through the deepest, thickest bogs like butter without getting swamped. And the ability to run bigger mud tires is just the icing on the cake.
A Gear Reduction That Protects Your Drivetrain Portals put the gear reduction right in the hub, which is a literal lifesaver for some of your vehicle’s most critical components. Putting the reduction in the hub places less stress on your axles, differential, prop shaft, and transmission, so you can ride harder than stock while causing less wear. Talk about a win-win situation!
Learn more about how tire size and gear reduction can unleash your machine’s potential.
Unmatched Gear Material We use the most premium, top-of-the-line gears in our portals because you deserve nothing less. They’re made from a strong 9310 alloy steel and are precision ground to mate perfectly each and every time. The strength and ingenuity of our gears give you a smooth, quiet ride, no matter how wild you get.
Stronger Housings by Design You won’t find better portal housings than the ones on GDP portals—we promise. We’ve done the research, we’ve conducted the tests, and we’ve designed housings that are strong enough to keep up with any type of off-road lifestyle. Whether you go with cast or our USA-made 6061 billet aluminum with a sleek CNC-machined finish, you’re getting portal housings that offer unmatched strength and reliability.
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, and believe us when we say this isn’t your average steel. It’s specialized for ultra-high force applications, and is even stronger than chromoly. With this strength and a thickness of 5/16”, these backing plates are guaranteed to last.
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
A sealed input gear and double-lipped output seal
100% sealing coverage throughout so you can forget about oil leaks
Bearings That Rock Your bearings are what keeps everything running smoothly. If your bearings go bad, you’re going to have problems. We don’t want that to happen, so we use roller bearings to hold our idler gear in place. Our output bearing is a double-angular contact bearing—this means it can handle huge loads in any direction without showing premature wear. Our bearings really are built for battle, and they’re just another crucial piece that makes GDP portals the best.
Universal Hubs and Slotted Rotors We design these precision-ground, stainless steel slotted rotors to stay cool regardless of how hard you ride. They give you the braking power you need, when you need it. And we include universal hubs, just to make your life a little easier. They have 4/156, 4/137, 4/115, and 4/110 bolt patterns and lugs, letting you run just about any side-by-side wheel out there. We also invented the tapered output shaft that our hubs attach to. It provides a more secure lock that won’t wobble or wear over time.
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 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) Steel steering arms
Extended brake lines
All required hardware, including recessed castle nut socket
Polaris General Portal Gear Reduction Recommendations
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.
Polaris General 1000 : 2016+
Polaris General 4 1000 : 2017+
Does not fit Polaris General XP 1000 : 2020+
Does not fit Polaris General XP 4 1000 : 2020+
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
Housings use Thermo-Tork® 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
14” or larger wheel required
Cannot exceed 5” backspacing
Not compatible with dual beadlock wheels
If you have any questions about fitment or this product please feel free to contact us.
You can Text or Call 801-674-2451 any time. If it is outside of our normal business hours (M-F, 9am-5pm) please Text us and we will get back to you as soon as we can.
Thank you for visiting and shopping at Kombustion Motorsports. The following are the terms and conditions that constitute our Shipping Policy.
Domestic Shipping Policy
ALL SHIPMENTS ARE SHIPPED WITH SIGNATURE REQUIRED TO ENSURE YOUR VALUABLE PACKAGE STAYS SAFE.
If specified otherwise from the customer, Kombustion Motorsport is not liable to refund or replace products if they are missing.
Shipment Processing Time
All orders are processed within 3-5 business days unless specified otherwise. Some products require a lead time, and in those cases we will contact you to specify a unique shipping situation. Orders are not shipped or delivered on weekends or holidays.
If we are experiencing a high volume of orders (i.e. sales promotions, special events) shipments may be delayed by a few days. Please allow additional days in transit for delivery. If there will be a significant delay in shipment of your order, we will contact you via email or telephone.
Shipping Rates & Delivery Estimates
Shipping charges for your order will be calculated and displayed at checkout.
International Shipping Policy
Shipments may take a week or more on top of the estimated delivery time. This is due to the package possibly being held up at a customs checkpoint. Kombustion Motorsports is not responsible for any delays due to customs delays.
If you are outside the contiguous United States, you will be responsible for any taxes and duties on any order that you place through Kombustion Motorsports.
Taxes And Duties Are The Responsibility Of The Customer.
If items are shipping freight, the customer is responsible for contacting and communicating with a shipping broker.
Delivery Delays Can Occasionally Occur.
Not all items are in stock at our location. If an item is out of stock at our Utah location, the requested item will be shipped from the manufacturer directly. This can result in multiple shipments for one order.
Thank you again for your order!
If you have question or concerns, please call 801-674-2451 Ext 3
*Lead times for products may vary. Times may be up to 8-10 weeks depending on the item. We will reach out to you if there is a large lead time to let you know.