Can-Am Defender HD10 8" Portal Gear Lift

Your Defender HD10 Will Become Unstoppable
Your Can-Am Defender HD10 is a powerhouse, but SuperATV’s 8” GDP Portals unlock its full potential. This premium upgrade combines an 8-inch lift with a built-in gear reduction to deliver more torque, better clearance, and enhanced off-road capability. Whether you're hauling, climbing, or cruising, you’ll benefit from the ability to run larger tires with ease. Customize your ride with 45%, 60%, or 70% gear reduction options and select either billet or cast housings for maximum durability.

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.

You’ll Be Able to Take on Any Terrain
The standout feature of our Defender HD10 8” GDP Portals is the ability to fine-tune your ride. With your choice of 45%, 60%, or 70% gear reduction, you can decide how much torque and speed your machine delivers. Both configurations provide impressive performance, giving you the strength to tackle rock gardens, confidently spin larger tires, and maintain control when pushing through deep mud. It’s power and versatility built around you.

A Gear Reduction That Protects Your Drivetrain
On your Defender HD10, GDP Portals shift the gear reduction from the transmission to the wheel hub, creating a more efficient drivetrain. This setup minimizes the load placed on vital components like your axles, prop shaft, differential, and transmission. Less strain means better durability and a reduced chance of costly repairs in the future.

Unbeatable Strength
Strength is non-negotiable when it comes to your Defender HD10, and SuperATV’s GDP Portals are built to exceed expectations. With your choice of cast or billet aluminum housings and rugged 5/16” steel alloy backing plates, you’re getting top-tier durability from every angle. These portals are designed to endure aggressive riding and heavy workloads alike. And thanks to a lifetime warranty, you can ride with confidence knowing you’re covered if something goes wrong.

• 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
When you outfit your Can-Am Defender HD10 with an 8” portal lift and larger tires, you’re increasing both performance and frame load. SuperATV’s Frame Stiffener is the solution for maintaining structural integrity. It strengthens your frame to resist bending and ensures your machine is ready for demanding rides and heavy workloads.

You Couldn’t Ask for Better Customer Service
Finding the perfect portals for your Defender HD10 is easier with the right support. Our team specializes in helping riders choose the ideal GDP setup for their machine and riding style. Get in touch with us and we’ll make sure you’re set up with exactly what you need.

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.
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