2015 xmr 800 rear right axle

I have a bad seal in my rear diff that i need to change out. How do i remove the rear axle so i can do this??? I have removed the tire along with the brake caliper and rotor, the rear shock and detached it from the sway bar. My issue is the trailing arm only drops a few inches before hitting frame support. I tried using a strap to pop the axle out of the diff but i couldnt get it to work. :th_smiliepissed: So any advice would be appreciated. Am i going to have to disassemble the left side also?? Thanks again.