The Polaris Xpedition rides better on 33-inch tires, but stock gearing and clearance hold it back—SuperATV's 4" GDP Portal Gear Lift fixes both at once. This drivetrain upgrade drops your hubs to deliver a true 4-inch lift while adding a built-in 15% or 30% gear reduction, giving your Xpedition the ground clearance, torque, and tire room overlanders need without changing OEM suspension angles.
Portals put the gear reduction at the very end of the driveline, so your axles, differential, prop shafts, and transmission all work less and last longer. Choose cast or billet 6061 aluminum housings and single or dual idler gears to match how hard you ride.
Key Features
- True 4-inch lift with room for up to 33-inch tires
- Choice of 15% or 30% gear reduction to boost torque
- Maintains OEM 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: Weak Clearance And Bogged-Down Gearing On The Polaris Xpedition
- Not enough clearance to clear rocks, ruts, and trail obstacles
- Big tires and heavy overlanding cargo bogging down acceleration
- Excess strain on stock axles, diff, and transmission from oversized tires
- Wanting more capability without wrecking factory suspension geometry
Best For: Polaris Xpedition Overlanders And Trail Riders Running Bigger Tires
- Overland and adventure owners adding ground clearance and tire size
- Riders stepping up to 33-inch tires who want their torque back
- Drivers who want a 15% reduction for top speed or 30% for max grunt
- Owners wanting billet housings and dual idlers for the toughest use
Specifications
- Lift height: 4 inches
- Gear reduction options: 15% or 30%
- 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: 33 inches on stock suspension
- Dual idler adds 3/4" front and rear offset (1.5" total extension)
- Gears: precision-ground 9310 alloy steel; 1.5" diameter 4340 hardened steel drive shaft
- Wheel requirements: 14" or larger wheel; max 5" backspacing; not compatible with dual beadlock wheels
- Includes assembled portal hub boxes, universal hubs, slotted rotors, backing plates, caliper mounting plates and adapters, 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). A 14-inch or larger wheel is required with no more than 5-inch backspacing, and dual beadlock wheels are not compatible. 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 4" GDP Portal Gear Lift give my Xpedition?
It provides a true 4-inch lift by lowering the hubs at each corner, adding ground clearance while keeping your OEM suspension angles intact.
Should I choose the 15% or 30% gear reduction?
Pick 15% if you want to keep a higher top speed with plenty of added power, and 30% if you run bigger tires or heavy loads and want maximum torque. SuperATV's portal gear reduction calculator can help you decide.
What size tires will fit with this portal lift?
You can run up to 33-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 choice 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 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 4" GDP Portal Gear Lift, confirm your Xpedition year, package (XP, XP5, ADV, or ADV5), and wheel backspacing, then decide on 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.
