Polaris RZR Trail S 900 4" Portal Gear Lift Select Idler Option:Single They’re built with better oil

They’re built with better oil flow and gearing forces in mind

High-performance synthetic formulation for maximum protection

Warning: This product can expose you to chemicals

45%–Perfect for Rocks A 6” portal box with a 45% gear reduction gives you tons of torque to crawl over any rock or boulder you can find

Polaris RZR Trail S 900 4" Portal Gear Lift Select Idler Option:Single They’re built with better oilAvailable 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 Housings use Thermo Tork gaskets or O rings that dont let anything through Universal hub fits all major bolt patterns Gear reduction reduces stress on your drivetrain Dual idler gear configuration adds a 1 offset Lighter than the