I busted the second front case on my 900 while in deep sticky mud.This latest differential was out of a 2016. I haven't taken it apart but i see its trying to spit the pinion out. Last time the ring and pinion both had broken teeth. Maybe bearing failure allowing the ring and pinion to separate? Regardless, i need another one. Is the Brutus still the best direct replacement? Should i get a billet case? I ride mostly muddy trails. Running only 30" Cryptids. No engine or clutch mods.