Dear Sarge,

I have a 2017 Polaris RZR XP Turbo EPS with about 2700 miles on it. It is not babied; it is ridden hard. Lately I have felt a low frequency rumble in the driveline. Initially I thought it was a “U” or “CV” joint, but everything seems tight. What else should I be looking at as a source of these Polaris RZR vibrations? My Dealer isn’t sure at this point so I thought I would ask you.

Paul Martinez

South Fork, Colorado

Private Martini, Anything that rotates could be at fault. Wheel bearings, knuckles, bent driveshaft, etc. My guess is a carrier bearing. The rubber has aged and loosened. You have two choices, replace the carrier bearing with another OEM carrier bearing or upgrade to a superior aftermarket unit. There is some valuable carrier bearing info at Americanoffroads.com, here: https://www.americanoffroads.com/lets-talk-about-vibration-or-how-important-your-carrier-bearings-are/. Since you obviously like speed with that Turbo Boot, you need to practice some M4 Speed Reloads. You WILL practice until you can reload in under 2.5 seconds Boot! Dismissed!

See UTV Action’s full test on the RZR XP Turbo here: TEST: 2018 POLARIS RZR XP TURBO DYNAMIX EDITION – UTV Action Magazine

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