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 driveshaft
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
Gear Down and Go Big Your Polaris General can get work done when it needs to, but deep down you know you bought your General for some fierce mud flingin' action. With SuperATV’s 8” GDP Portal Gear Lift installed, you can take your side-by-side to another level. That huge increase in ground clearance paired with its torque-boosting 45% or 60% gear reduction gives you the ability to clear bigger rocks and power through thicker mud. With an 8” GDP Portal Kit, nothing’s gonna stop you.
GDP—the Most Trusted Name in Portals So how many people let GDP transform their ride? More people than any other portal system. There are thousands riding on portals every weekend tearing up mud parks and bombing down trails. With total ride hours numbering in the hundreds of thousands, you know that GDP is the must mud-proven portal kit you can get.
Perfect for Mud Did we mention 8” portals are great for muddin'? Getting lifted means you have room for big mud tires and your General can cruise over deep mud instead of plowing right through. The 45% or massive 60% gear reduction means you get tons of torque back to turn those tires so you’ll have no issue pushing through the thickest peanut butter mud.
A Gear Reduction That Protects Your Drivetrain GDP puts the gear reduction right in the portal hub, which means it comes after your drivetrain. That makes this gear reduction reduce the stress on your axles, differential, prop shaft, and transmission. So ride harder than stock and cause less wear with GDP.
Learn more about how tire size and gear reduction can unleash your machine’s potential.
Unmatched Gear Material Our top-of-the-line gears are made from precision-ground 9310 alloy steel so they mate perfectly each and every time. That gives you super quiet portals no matter how hard you ride. Not to mention they’re bulletproof. They’re built for battle and built for luxury.
Stronger Housings by Design Our portal housings are built on the back of experience. We’ve done more field testing than anybody else and we know what makes our box stronger. So whether you go with cast aluminum or choose USA-made billet aluminum with a slick CNC-machined look, you’re getting portal boxes that can stand up to everything out on the trail.
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 There’s nothing stronger than our backing plates. What makes them so good? They’re built with an advanced steel alloy that’s stronger than chromoly steel. And at 5/16” thick, these hand-welded plates won’t fold over or break even after years of hard riding. In fact, they’re probably the strongest thing on your machine.
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
Rubber O-rings that completely seal the housings
100% sealing coverage throughout so you can forget about oil leaks
Bearings That Rock Bearings that can take abuse are just as important as gears. That’s why our output bearings are double-angular contact bearings. They keep your output shaft running true when you’re loaded down with a heavy machine and when your smashing into rocks and stumps. From top to bottom, GDP is built for battle.
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. These are the most popular bolt patterns so no matter what side-by-side wheels you get your hands on, they’ll work on these hubs. 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 An 8” portal kit is a heavy-duty piece of hardware for heavy-duty machines, and as awesome as the General is, it’s not quite up to snuff. That’s why we highly recommend a frame stiffener. Trust us—we’ve hit enough bumps to know that bending a stock frame can happen. Don’t do it. Get a frame stiffener.
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.
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 Extended brake lines All required hardware, including recessed castle nut socket
Polaris General Portal Gear Suspension Recommendations
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.
Polaris General : 2016+
Polaris General 4 : 2017+
Does not fit Polaris General XP 1000 : 2020+
Does not fit Polaris General XP 4 1000 : 2020+
Wheels need to have a center hole of at least 3.25" (82.55mm) or require a 1” wheel spacer.
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.