my polaris 325 magnum rear end slipping want go

 

The Magnums were bad after a few years on the rear prop shaft coupler splines stripping out at the rear differential. Grease zerks were hard to grease because because of the box frame,plus a lot of people over looked them. http://www.cyclepartswarehouse.com/f...2000&fveh=5502
item #17. About $30 for the part ,but if it's the problem the rear axle housing and rear differential have to be removed to replace it. Just jack up the rear end,place in gear and turn the tires. You should feel the coupler slipping if it's bad.
OPT

 

it is belt driven dont have a chain

 

Look at my post above,I realized that it was a Magnum,not a Trail Boss and amended it. I shouldn't be answering questions at 3 am. Going back to bed OPT