Why You’ll Love It
6” Portal Lift adds ground clearance directly at the hubs 30%, 45%, or 60% Gear Reduction adds torque and relieves drivetrain stress Selectable Idler Setup lets you choose dual- or single-idler gearing Cast or Billet Housings let you choose the construction that fits your build Limited Lifetime Warranty protects your purchase
Gen 3 Portals Are Geared for All
GDP didn’t make the first side-by-side portal kit to hit the market—just the first kit that anybody gave a damn about. And SuperATV’s GDP 6” Portal Gear Lift for the Can-Am Defender HD5 is the perfect solution for riders who want taller machines, bigger tires, and unmatched power. Choose a 30%, 45%, or 60% gear reduction for more power to the ground. Boost your strength, power, and performance to the max by choosing dual idler gears. GDP isn’t like the other guys. Our parts are refined through endless blood, sweat, and hard rides. GDP portals will redefine your Defender.
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.
Perfect for All Riding Styles
GDP Portals are designed to tackle any challenge and accomplish any task your Defender HD5 can. From dunes to trails to mud, you’ll never look back with a GDP Portal Gear Lift. Get a smaller 30% reduction for faster rides that still pack plenty of torque. Bigger tires for rocks or rough rides require a bigger gear reduction—like 45%. Build the mother of all mudders with a 60% gear reduction. Then take your strength over the top with dual idler gears. Portals give you your torque back so your monster build can still rip harder than the rest.
A Gear Reduction That Protects Your Drivetrain
Our portals put the gear reduction in the hub, instead of in your transmission. This is a literal lifesaver for your HD5’s axles, prop shaft, differential, and transmission. Your factory steering geometry remains untouched and those parts aren’t put under any extra strain. They’ll last longer, too.
GDP Portals Are Stronger
GDP doesn’t settle for less and neither should you. Our portals are built to be the strongest on you can get so you can ride with confidence. Our cast and billet aluminum housings are tough enough to take on hard rides. Combine that with 5/16” backing plates made from an advanced steel alloy, and our portals are unstoppable.
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
- Complete the Package with a Frame Stiffener
Portals and monster tires are fun, but they can place additional stress on your machine’s frame. To make your suspension bulletproof, consider adding a SuperATV Frame Stiffener when you check out!
Top-Rated Customer Service
Still need a little help getting exactly what you need? With GDP, you get a dedicated portal tech support team. Give us a call so we can get the perfect set of portals in your hands today.
6” Portal Gear Lift Includes
- (4) Assembled portal hub boxes complete w/ 9310 gears, seals, output shaft, gaskets, and thrust bearings
- (4) Universal hubs and precision-ground stainless steel slotted rotors w/ lugs
- (4) Specialized steel alloy backing plates
- (4) Steel caliper mounting plates
- (6) Brake caliper mounts
- (2) Steel steering arms
- Extended brake lines with parking brake and brake cable brackets
- All required hardware including recessed castle nut socket
- Max Tire Size Recommendations for 6” Portal Gear Lift
- Max Tire Size
- Required Suspension Setup with GDP Portals
- 34"
- 2" Forward Offset A-Arms
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
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 that don’t let anything through
- Universal hubs can be set up to work with the following bolt patterns: 4/156, 4/137, 4/115, and 4/110
- Gear reduction reduces stress on your drivetrain
- Dual idler gear configuration adds a 1” front and rear offset—2” total extension
- Lighter than the competition
Fitment (per SuperATV)
Can-Am Defender HD 5 : 2017-2021 Can-Am Defender HD 5 DPS : 2017-2021
Wheel Requirements
- 18” or larger wheel required
- 18” wheels cannot exceed 4-1/2” backspacing
- 20” and larger wheels cannot exceed 5” backspacing
- Wheels need to have a center hole of at least 3.25" (82.55mm) or require a 1” wheel spacer
- NOTE: Big Lift Kit or 2" Forward Offset A-Arms strongly recommended
Installation instructions (PDF)
Ships free from SuperATV. Price is SuperATV's current price.
