my 15′ xp1k 4 is not engaging in 4wd and in 2wd sometimes feels like its trying to engage as it pulls hard to the left and the left axle has no lateral movement. getting a loud random poping noise from front end. axles (aftermarket) seam fine, thinking junk plastic sprague? what do think? strongest one? any other parts to upgrade while in there? TIA
Utah RZR Rentals

whence