SuperATV Polaris RZR Pro S 8" Portal Gear Lift

SKU: PGH8-1-85-451#AA

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$4,189.95
$4,189.95
$4,653.95

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Portal Housing Material: Cast
Portal Gear Reduction: 45%
Select Idler Option: Single

Turn Your RZR Pro S into a Mud Beast

If you’re ready to blast through the nastiest, thickest mud, you need SuperATV’s Polaris RZR Pro S 8" Portal Gear Lift. It gives you the ground clearance to rip through deep muck without getting bogged down. Choose a 45%, 60%, or 70% gear reduction, plus billet or cast aluminum housings, to turn your RZR into a serious mud machine and run massive tires.

What’s a Dual Idler?

SuperATV’s dual idler gear portals are designed for strength and performance. These CNC-ground idler gears provide smooth torque transfer and reliable power. Made from ultra-durable 9210 steel alloy, they’re built to last.

Choose Your Power: 45%, 60%, or 70% Gear Reduction

Big tires need big power. These 8" GDP Portals provide the space and gear reduction you need to fit massive tires while helping restore lost torque and maintain performance.

Save Your Drivetrain

With GDP portals, the gear reduction happens right at the hub, which helps reduce stress on your drivetrain. Your axles, differential, prop shafts, and transmission don’t take the full beating of turning monster tires.

Built to Dominate

These GDP portals are engineered for tough conditions, with your choice of cast or 6061 billet aluminum housings and 5/16" advanced steel alloy backing plates.

  • Reinforced housings for gear retention and optimized oil flow
  • Advanced steel alloy backing plates
  • Enhance with gear oil formulated for GDP Portals
  • No vents, because vents do more harm than good

Advanced Gaskets, Seals, and Bearings

  • Advanced gaskets and O-rings with excellent oil resistance and low deterioration rates
  • Sealed input gear and double-lipped output seal
  • 100% sealing coverage throughout to help prevent oil leaks
  • Double-angular contact output bearings to help prevent premature wear
  • Roller idler and drive bearings to maintain proper gear meshing

8" Portal Gear Lift Includes:

  • (4) Assembled portal hub boxes complete with gears, seals, output shaft, gaskets, and thrust bearings
  • (4) Universal hubs and precision-ground stainless steel slotted rotors with lugs
  • (4) Specialized steel alloy backing plates
  • (4) Steel caliper mounting plates
  • (2) Caliper adapter plates (dual idler configuration only)
  • Extended brake lines
  • All required hardware, including recessed castle nut socket

Max Tire Size Recommendations for 8" Portal Gear Lift

  • 42" max tire size with stock suspension setup

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 tire sizes are the largest we fit without rubbing. With minor trimming or a small amount of rub, larger tire sizes can be used.

Fitment:

  • Polaris RZR Pro S : 2025+
  • Polaris RZR Pro S 4 : 2025+

Wheel Requirements:

  • 22" or larger wheel required
  • Wheels cannot exceed 5" backspacing

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