Gear Down and Go Big
Elevate your Defender's performance and aesthetics with our 8" GDP Portal Gear Lift. Our high-quality lift not only gives your vehicle an impressive appearance but also provides a game-changing gear reduction of your choice - 45%, 60%, or an intense 70% for those craving the most ferocious rides. When combined with dual idler gears, our 70% gear reduction ensures unprecedented torque boost. At GDP, we empower you to conquer the most challenging bounty holes with the most significant portal lift and gear reduction on the market. There's nothing standing between you and the ultimate off-road experience anymore.
What is a Dual Idler®?
Experience the culmination of years of research and development with our uniquely designed dual idler gear portals. Our innovative design features a second idler gear in the portal box, expertly distributed to handle twice the surface area, enabling a more reliable torque transfer and the strongest gear set available. Precision and perfection matter to us, which is why our gears are meticulously crafted using Precision CNC grinding. Made from industry-leading 9310 steel alloy, our gears are built to last. Discover the difference dual idlers can make with the unbeatable quality and experience of GDP.
45%, 60%, and 70% Gear Reductions Destroy Mud
Dominate every mud trail with our ultimate UTV, the Defender. An increasing favourite amongst off-road enthusiasts, this side-by-side is engineered to conquer the thickest mud terrains. Enhanced with 8" portals, and offering a gear reduction of 45%, 60%, or 70%, the Defender ensures seamless navigation through challenging terrains. The high-torque capacity empowers you to push through any obstacle with ease. Accommodating a tire size of up to 44", this UTV is ready to take on any adventure, even if the mud is just deep enough to touch your skid plate. Experience the power and performance of the Defender, redefine your off-road limits today.
A Gear Reduction That Protects Your Drivetrain
Portals put the gear reduction right in the hub. That matters because putting it after your drivetrain components will make them last longer. GDP reduces the stress on your axles, differential, prop shaft, and transmission even if you’re rolling on huge tires.
Learn more about how tire size and gear reduction can unleash your machine’s potential.
Stronger Housings and Backing Plates
Discover the power of precision design with our portal boxes, meticulously forged over time and trusted by industry experts. Thanks to countless hours of rigorous ride testing, we confidently produce the strongest portal boxes in the market. Whether your preference lies in cast or USA-made billet aluminum housings, we assure you of top-grade, accurately crafted hardware. Further strength is added with 5/16" backing plates, manufactured using an avant-garde steel alloy. This results in unbeatable longevity, giving you portal boxes designed to surpass all others in durability. Rely on our quality and experience - because we build to last.
- 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
Frame Stiffener Required
These Can-Am Defender 8” portals are big, beefy, and powerful. In fact, they give you such a big lift that your UTV needs a frame stiffener to keep from bending its chassis. We’ve put it through its paces and bent plenty of frames. Trust us and get a frame stiffener.
| 8” 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 | ||
| Extended brake lines | ||
| Steering stop kit (dual idler configuration only) | ||
| All required hardware, including recessed castle nut socket | ||
| Frame stiffener (must select at checkout) | ||
| Can-Am Defender Portal Gear Suspension Recommendations | ||
|---|---|---|
| Max Tire Size | Required Suspension Setup with 8" Portals | |
| 40" | 2" Forward Offset A-Arms | |
| 44" | 6" Lift Kit | |
| If you need help figuring out which gear reduction is right for you, check out our portal gear reduction calculator. | ||
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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 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. ⚠ California Proposition 65 Warning ⚠ WARNING: This product may contain a chemical known to the State of California to cause cancer or birth defects or other reproductive harm. FITMENT
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