I only know Polaris, but it shoud be the same process. You need to remove the rear suspension (usually 4 bolts on the tunnel). If you have any way to suspend the rear suspension about 4 feet in the air it would help at this point. Then you need to find out how to remove the drive shaft. On the polaris, I remove the 3 left side bolts that hold the bearing. (You need to remove the speedo wire first). Then you need to remove the chaincase cover and see how the driveshaft is removed from the lower gear. Usually there is a large nut on the end of the shaft. If the gears spin while removing the nut, hit the breaks. Remove the chain and lower gear. Now, with a little patience, you should be able to slide the drive shaft out of the bearing behind the chaincase. If you have some help, it is a little easier if someone holds the track away from the drive shaft. Once your driveshaft is out of the chaincase, try to remove the bearing from the other side of the shaft. If it is stuck, I use a bearing puller to take it off. Then reverse the process. On an older sled, I'd also recommend replacing the bearings while you are down there. I would get a new chaincase gasket (only a couple of $$) which may save some headaches from reusing the old one, and new lube. Also make sure the 1.5" lugs will clear without any other modifications.
Oh-yea, if it is too hard to pull the shaft out of the chaincase, I have also removed the chaincase entirely, but that is a pretty long process.
Oh-yea, if it is too hard to pull the shaft out of the chaincase, I have also removed the chaincase entirely, but that is a pretty long process.
