its really not that hard, it gets hyped u way to much. i just did mine on me sxr. do all the bearings in the chain case, at least the lower seal on the chain case, and the pto drive bearing. well your in there you might as well do them, its not that much extra work. the chain case has to come out(for me it did) to slip the drive axle out. make sure you put the track on in the right direction, look for cracks in the w arm, might as well re enforce it, do the w arm bushings and if your up for it tap grease fittings in the lower w arm mount and look to make sure the rib on the inside of the rail that the center shock mount rides on isnt sheared off. look at bethevipers skid rebuild. that what i did. you dont have to do all this, but when i was in there i went balls to the walls and did it. good luck. btw an impact driver can help get those set screws out.