GDP Portals Are Game-Changing
Get a GDP Portal Gear Lift for your Honda Pioneer 1000 and unlock power and performance you can’t find anywhere else. Choose a 15% or 30% gear reduction, with cast or billet aluminum housings to match the way you ride. For maximum strength, dual idlers are available for the toughest rides.
What Is a Dual Idler®?
A second idler gear inside the portal box spreads the load over twice as much surface area for stronger, more reliable torque transfer. Precision CNC grinding ensures the gears are perfectly matched, and the gears are made from 9310 steel alloy for durability.
Why Use Portals?
The gear reduction is built into the hub at the end of the drivetrain, which helps reduce stress on your axles, differential, prop shafts, and transmission. Depending on your setup, choose a 15% reduction for faster riding with added torque, or a 30% reduction for maximum geared-down performance with larger tires.
Built for Strength
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
Advanced gaskets and O-rings for oil resistance and sealing
Universal hub fits all major bolt patterns
Dual idler gear configuration adds a 3/4" front and rear offset, 1.5" total extension
Additional Features
Reinforced housings optimized for gear retention and oil flow
5/16" backing plates made from advanced steel alloy
Sealed input gear and double-lipped output seal
Double-angular contact output bearings help prevent premature wear
Roller idler and drive bearings maintain proper gear meshing
Can be enhanced with Portal Blood gear oil formulated for GDP Portals
Fitment
Honda Pioneer 1000 : 2016+
Honda Pioneer 1000 Deluxe : 2016+
Honda Pioneer 1000 Limited Edition : 2022+
Honda Pioneer 1000-5 : 2016+
Honda Pioneer 1000-5 Deluxe : 2016+
Honda Pioneer 1000-5 Limited Edition : 2022+
Honda Pioneer 1000-6 : 2023+
Note:
Not compatible with Keller Ball Joints
Not compatible with ADR Axles
Wheel Requirements:
14" or larger wheel required
14" and 15" wheels cannot exceed 4-1/2" backspacing
16" and larger wheels cannot exceed 5" backspacing
If using factory 14" wheels, you must run 1.5" wheel spacers
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
Max Tire Size Recommendations for 4" Portal Gear Lift
27" with stock suspension
27" with a 3" lift kit
30" with 1.5" forward front A-arms
30" with 1.5" forward front A-arms and a 3" lift kit
34" with a 6" lift kit
Max tire sizes are measured at full compression and full turn. The listed sizes are the largest that fit without rubbing, though larger tires may work with minor trimming or a small amount of rub.
4" Portal Gear Lift Includes:
(4) Assembled portal hub boxes complete with 9310 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
(2) Steel steering arms
Extended brake lines
All required hardware, including recessed castle nut socket
