Big tires and hard overlanding punish a stock Polaris Xpedition, but SuperATV's 6" GDP Portal Gear Lift delivers the clearance, torque, and strength to push through anything. This drivetrain upgrade drops your hubs for a full 6-inch lift while adding a built-in 30%, 45%, or 60% gear reduction, opening up room for massive 34-inch tires and the low-end grunt to turn them—all while keeping factory suspension angles.
The gear reduction lives in the portal hub at the end of the driveline, so your axles, differential, prop shafts, and transmission see less strain and last longer. Choose cast or billet 6061 aluminum housings and single or dual idler gears to match how hard you push your Xpedition.
Key Features
- Full 6-inch lift with room for up to 34-inch tires
- Choice of 30%, 45%, or 60% gear reduction for massive torque
- Maintains factory suspension angles
- Cast or billet 6061 aluminum housings with advanced steel backing plates
- Single or dual idler gear configuration for added strength
- Precision-ground 9310 alloy steel gears; 1.5" 4340 hardened steel drive shaft
- Universal hub fits all major bolt patterns
- Sealed input gear and double-lipped output seals for leak-free running
Built To Solve: Not Enough Clearance Or Torque For Big Tires On The Polaris Xpedition
- Stock clearance too low for extreme terrain and large obstacles
- 34-inch tires and heavy overlanding gear bogging down acceleration
- Excess wear on stock drivetrain from oversized tires
- Wanting maximum lift without changing factory suspension geometry
Best For: Serious Polaris Xpedition Overlanders Running Big 34-Inch Tires
- Overlanders and adventure riders building for the toughest terrain
- Owners stepping up to 34-inch tires who need torque to match
- Riders choosing 30% for balance or 60% for maximum grunt
- Builders wanting billet housings and dual idlers for hard, heavy use
Specifications
- Lift height: 6 inches
- Gear reduction options: 30%, 45%, or 60%
- Idler options: single idler or dual idler gears
- Housing material options: cast or billet 6061 aluminum
- Frame stiffener option: available (recommended add-on)
- Max tire size: 34 inches on stock suspension
- Dual idler adds 1" front and rear offset (2" total extension)
- Gears: precision-ground 9310 alloy steel; 1.5" diameter 4340 hardened steel drive shaft
- Wheel requirements: 18" or larger wheel; 18" wheels max 4-1/2" backspacing; 20" and larger max 5" backspacing
- Includes assembled portal hub boxes, universal hubs, slotted rotors, backing plates, caliper mounting plates, steel steering arms, extended brake lines with parking brake, and all hardware
Fitment
Confirmed fit for 2024 and newer Polaris Xpedition models, including XP, XP5, ADV, and ADV5 packages (NorthStar, Premium, and Ultimate trims). An 18-inch or larger wheel is required; 18-inch wheels must not exceed 4-1/2-inch backspacing and 20-inch or larger wheels must not exceed 5-inch backspacing. Fitment is not guaranteed on applications not listed here—verify your exact year, model, and wheel setup before ordering.
FAQ
How much lift does the 6" GDP Portal Gear Lift give my Xpedition?
It provides a full 6-inch lift by lowering the hubs at each corner, adding major ground clearance while keeping your factory suspension angles intact.
Which gear reduction should I choose—30%, 45%, or 60%?
Choose 30% for a balance of speed and torque, 45% for a strong middle ground, and 60% for maximum torque when turning the biggest tires and heaviest loads. SuperATV's portal gear reduction calculator can help you pick.
What size tires will fit with this portal lift?
You can run up to 34-inch tires on stock suspension. Larger sizes may work with minor trimming or a small amount of rub.
What is the difference between single and dual idler gears?
Dual idler gears spread the load across two precision-matched gears instead of one, adding strength for hard, heavy use. Single idler is a strong, more economical option for most riders.
Do I need a frame stiffener?
SuperATV strongly recommends adding a frame stiffener with portals. Rough riding and added weight can stress your frame, and a stiffener adds the support needed for hard rides.
Will portals reduce wear on my drivetrain?
Yes. Because the gear reduction sits in the hub at the end of the driveline, your axles, differential, prop shafts, and transmission all work less, which helps them last longer.
Why SuperATV
SuperATV's GDP portals are the most trusted name in portal gear lifts, built with the industry's toughest 9310 steel alloy, precision CNC-ground gears, and steel backing plates stronger than chromoly. Each GDP Portal Gear Lift is backed by a Limited Lifetime warranty against manufacturing defects to the original purchaser and a dedicated portal support team.
Complete Your Xpedition Portal Gear Lift Setup
Before you order your 6" GDP Portal Gear Lift, confirm your Xpedition year, package (XP, XP5, ADV, or ADV5), and wheel backspacing, then choose your idler, housing, and gear-reduction configuration. Add a SuperATV Frame Stiffener for extra frame support and pick up Portal Blood gear oil formulated for GDP portals so your new portals stay sealed and running strong from the first ride.
