GDP Portals Will Revamp Your Ride If you’re looking for a way to completely redefine your Can-Am Defender, SuperATV’s GDP 4" Portal Gear Lift is the answer. Choose between a 15% or 30% gear reduction, and add a dual idler gear for added strength. GDP portals are built to deliver better performance on the trail, in mud, and in wide-open riding conditions.
What is a Dual Idler? A second idler gear inside the portal box spreads the load over twice as much surface area for more reliable torque transfer and stronger gearing. Precision CNC grinding helps ensure the gears are perfectly mated, and the gears are made from 9310 steel alloy for durability.
A Gear Reduction That Protects Your Drivetrain By placing the gear reduction in the hub after the transmission, prop shaft, differential, and axles, portals reduce stress on your drivetrain while helping your most vital components last longer.
Strength and Construction GDP portals are available with cast or billet aluminum housings and 5/16" thick backing plates made from an advanced steel alloy. They also feature a 1.5 in. diameter 4340 hardened steel drive shaft, advanced gaskets or O-rings, a sealed input gear, double-lipped output seal, double-angular contact output bearings, and roller idler and drive bearings for smooth operation and strong gear meshing.
Features
Available with billet or cast aluminum housing
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 advanced gaskets or O-rings
Universal hub fits all major bolt patterns
Gear reduction reduces stress on your drivetrain
Dual idler gear configuration adds a 3/4" front and rear offset, 1.5" total extension
Lighter than the competition
Complete the Package with a Frame Stiffener Portals and monster tires can place additional stress on your machine’s frame. For a more bulletproof suspension setup, SuperATV recommends adding a frame stiffener during installation.
Kit Includes
(4) Assembled portal hub boxes complete with 9310 gears, seals, output shaft, gaskets, and thrust bearings
(4) Universal hubs and stainless steel slotted rotors with lugs
(4) Specialized steel alloy backing plates
(4) Steel caliper mounting plates
(2) Steel steering arms
Extended brake lines
All required hardware, including recessed castle nut socket
Frame stiffener optional
Max Tire Size Recommendations for 4" Portal Gear Lift
26" max tire size with stock suspension
27" max tire size with a 3" lift kit
28" to 34" max tire size with 2" forward offset A-arms
28" to 38" max tire size with a 6" lift kit
If you need help figuring out which gear reduction is right for you, use the portal gear reduction calculator: portal gear reduction calculator.
Wheel Requirements
14" or larger wheel required
Wheels cannot exceed 4-1/2" backspacing
Not compatible with dual beadlock wheels
Wheels need to have a center hole of at least 3.25" (82.55mm) or require a 1" wheel spacer
Fitment
Kit 1 Will Fit:
Can-Am Defender HD 5 : 2017-2021
Can-Am Defender HD 5 DPS : 2017-2021
Can-Am Defender HD 8 : 2016-2021
Can-Am Defender HD 8 DPS : 2016-2021
Can-Am Defender HD 8 XT : 2016-2021
Can-Am Defender HD 10 : 2016-2019
Can-Am Defender HD 10 DPS : 2016-2021
Can-Am Defender HD 10 XT : 2016-2021
Can-Am Defender HD 10 XT Cab : 2016-2021
Can-Am Defender HD 10 XTP : 2018-2021
Can-Am Defender HD 10 Mossy Oak : 2018-2021
Can-Am Defender HD 10 PRO : 2020-2021
Can-Am Defender MAX HD 8 : 2017-2021
Can-Am Defender MAX HD 8 DPS : 2017-2021
Can-Am Defender MAX HD 8 XT : 2017-2021
Can-Am Defender MAX HD 10 : 2017-2021
Can-Am Defender MAX HD 10 DPS : 2017-2021
Can-Am Defender MAX HD 10 XT : 2017-2021
Can-Am Defender MAX HD 10 XT Cab : 2017
Kit 2 Will Fit:
Can-Am Defender HD 10 XMR : 2018-2021
Can-Am Defender HD 10 XT Cab : 2018-2021
Can-Am Defender Limited : 2020-2021
Can-Am Defender MAX HD 10 XT Cab : 2018-2021
Can-Am Defender MAX Lone Star Edition : 2018-2021
Can-Am Defender MAX HD 10 XMR : 2019-2021
Can-Am Defender MAX Limited : 2020-2021
Kit 3 Will Fit:
Can-Am Defender HD 9 : 2022+
Can-Am Defender HD 9 DPS : 2022+
Can-Am Defender HD 9 XT : 2022+
Can-Am Defender HD 9 DPS CAB : 2022+
Can-Am Defender HD 10 : 2022+
Can-Am Defender HD 10 DPS : 2022+
Can-Am Defender HD 10 XT : 2022+
Can-Am Defender HD 10 XT Cab : 2022+
Can-Am Defender HD 10 XTP : 2022+
Can-Am Defender HD 10 Mossy Oak : 2022+
Can-Am Defender HD 10 XMR : 2022+
Can-Am Defender Limited HD 10 : 2022+
Can-Am Defender Pro HD 10 : 2022+
Can-Am Defender MAX HD 9 : 2022+
Can-Am Defender MAX HD 9 DPS : 2022+
Can-Am Defender MAX HD 9 XT : 2022+
Can-Am Defender MAX HD 10 DPS : 2022+
Can-Am Defender MAX HD 10 XT : 2022+
Can-Am Defender MAX HD 10 XT Cab : 2022+
Can-Am Defender MAX HD 10 XMR : 2022+
Can-Am Defender MAX HD 10 Lone Star Edition : 2022+