SuperATV - Can-Am Defender HD9 8" Portal Gear Lift

Portals That'll Completely Change How Your Defender HD9 Performs

Take your Can-Am Defender HD9 from capable to unstoppable with SuperATV's 8" GDP Portals. Designed for riders who demand more, these portals add 8 inches of lift and a precision-engineered gear reduction that increases torque and performance. Enjoy higher ground clearance and the ability to mount larger tires for tackling tougher terrain. Choose between 45%, 60%, or 70% gear reductions, along with billet or cast housing options, to build your ideal setup.

What is a Dual Idler?

After years of research and development, SuperATV's dual idler gear portals are engineered for superior performance. 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. Precision CNC grinding ensures perfect gear mating. Gears are made from 9310 steel alloy, the industry's toughest material.

Made for All Riding Styles

These 8" GDP Portals are designed with flexibility in mind. Choose from 45%, 60%, or 70% gear reduction to get the right mix of torque and speed for your riding style. Gain the muscle needed for rock crawling, handle oversized tires, and navigate deep, muddy terrain with precision.

Protects Your Drivetrain

GDP Portals move the gear reduction out to the wheel hub, taking pressure off your machine's core components. By reducing stress on the axles, prop shaft, differential, and transmission, you improve longevity and help prevent major repair costs.

Built Tough

Choose between cast or billet aluminum housings for the durability you need. Reinforced with 5/16" backing plates crafted from advanced steel alloy, these portals withstand serious punishment. Backed by a lifetime warranty.

• Housings reinforced for gear retention and optimized for oil flow
• Advanced steel alloy backing plates stronger than chromoly
• No vents—vents do more harm than good

Advanced Gaskets, Seals, and Bearings

• Advanced gaskets and O-rings with excellent oil resistance and low deterioration rates
• Sealed input gear and double-lipped output seal
• 100% sealing coverage to prevent oil leaks
• Double-angular contact output bearings to prevent premature wear
• Roller idler and drive bearings to maintain perfect gear meshing

Frame Stiffener Required

Upgrading your Can-Am Defender HD9 with an 8" portal lift and bigger tires puts your frame to the test. SuperATV's Frame Stiffener adds the support your machine needs, engineered to prevent deformation and keep your ride tough for aggressive use.

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)

Suspension Recommendations

Max tire sizes are measured at full compression and full turn. Larger tire sizes can be used with minor trimming or a small amount of rub.

Key Features:

• Available with billet or cast aluminum housings
• Dual idler gear configuration maximizes strength
• 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 or O-rings
• Universal hubs work with bolt patterns: 4/156, 4/137, 4/115, and 4/110
• 1.5" front and rear offset—3" total extension