[QUOTE=Jeff_Super_S;2811717]The right rear wheel hub is stiripped. The bike has a solid rear axle so the only way one wheel isn't pulling is because that hub is stripped. The front diff in not locked together so one wheel can turn when the other isn't. You just don't notice it until one rear isn't

 

trying to figure out how to post on here

 

i have 1993 big bear 350.yesterday i was in the woods, snow covered roads,i noticed my bike was spinning on level surface,when i finally got home i jacked it up and noticed that when i throttler her in gear the back wheels not turning,the side driveshaft is turning where it goes into the rear diff.Is my axle stripped.?on gravel road she moves okay

 

Yes, you are now front wheel drive. It is possible the splines on the prop shaft from transfer case to rear diff, have gone but on a Big Bear it is usually the splines on the rear axle shaft have gone, in the crownwheel, very expensive to fix.