Can-Am XMR Rear Diff Question June 16, 2015 i just changed all the fluids in my 15 800 xmr and just ran across something while googling around. says for the rear diff you have to measure out the fluid not fill till comes out fill hole like you do on front and gearbox. is this true? Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related