If you’re building your Polaris Xpedition to handle serious terrain, the Dual Idler 4 Inch Portal Gear Lift by High Lifter is the kind of upgrade that goes way beyond a simple lift. These portals are built with forged gear boxes, not cast or billet, which means the aluminum’s grain structure is aligned for superior strength and resistance to fatigue, cracking, and hard impacts. Pair that with CNC-machined, heat-treated steel gears and heavy-duty 5/16-inch steel backing plates with gussets, and you’ve got a setup designed to take abuse without flinching.

Durability is a huge focus here, and it shows in the sealing system. High density Kevlar fiber gaskets keep everything sealed tight against oil and coolant, while dual output shaft seals and triple input seals (including a wiper seal) help keep water and debris out where they belong. The dual idler gear design is a standout feature too, it spreads the load across more gear teeth, reducing stress by up to 50% and delivering smoother, more reliable torque transfer over time.

Beyond strength, these portals bring real-world performance benefits. By relocating the lift to the hubs, you gain extra ground clearance without messing with suspension geometry, and the internal gear reduction helps take strain off your drivetrain when running bigger tires or added weight. You’ll also notice improved engine braking and longer brake life, thanks in part to precision-ground stainless steel rotors with cooling slots. Add in universal hubs for flexible wheel fitment, and you’ve got a portal system that’s as versatile as it is tough, ready for mud, rocks, and everything in between.