Kawasaki Brute Force 4" Portal Gear Lift

Upgrade Your Kawasaki Brute Force with GDP Portals
Your Kawasaki Brute Force works hard for you—now it’s time to take it to the next level. SuperATV’s 4” Portal Gear Lift gives you the power, ground clearance, and tire clearance you need to conquer the trails. With your choice of a 15% or 30% gear reduction, GDP Portals give you the power and performance you need.

Boost Torque the Way You Want
Want more power? With a choice of 15% or 30% gear reduction, you can get the perfect amount of torque for your style. The 30% gear reduction delivers unbeatable torque for hauling and climbing, while the 15% option keeps your top speed intact with a noticeable torque boost.

Keep Your Drivetrain Protected
Extra weight and torque can wear out your drivetrain—but not with GDP Portals. By putting the gear reduction in the hub, your drivetrain stays safe while you power through tough terrain. Plus, you keep your factory suspension for smooth rides and cool-running axles.

Tough Enough for Any Trail
Don’t let rough terrain slow you down. GDP Portals feature cast and 6061 billet aluminum housings reinforced with high-strength steel backing plates. They’re built to handle the hardest rides and keep you going when others might fail.

• Our housings are reinforced for gear retention and optimized for oil flow
• Advanced steel alloy backing plates are stronger than chromoly
• Enhance with Portal Blood—gear oil formulated for GDP Portals
• There are no gimmicks and no vents because vents do more harm than good—we know because we tested them

Advanced Gaskets, Seals, and Bearings
Our portals use:

• Advanced gaskets and O-rings with excellent oil resistance and low deterioration rates
• A sealed input gear and double-lipped output seal
• 100% sealing coverage throughout so you can forget about oil leaks
• Double-angular contact output bearings to prevent premature wear
• Roller idler and drive bearings to maintain perfect gear meshing

Top-Rated Customer Service
Still not sure exactly what you need? We’ve got a dedicated team to help you make the right choice. Give us a call so we can get the perfect set of portals in your hands today.

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
• (2) Steel caliper mounting plates
• (6) Caliper mounting plate shims
• (2) Caliper spacers
• Extended brake lines
• All required hardware, including recessed castle nut socket

Kawasaki Brute Force Max Tire Size Recommendations
Tire Size	Required Suspension Setup with 4" Portals
29"	Stock
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 tires sizes are the largest we fit without rubbing. With minor trimming or a small amount of rub, larger tire sizes can be used.

Patent # 11,299,042

Patent # 11,318,787