MC Chaincase

Should be the same chaincase. Could be that one is painted and one is not for the different part numbers.

A lot of those late 90's to early 2000's cats have the same chaincase. I bet I have one in the garage if you need one. And I kknow i have a good bulk head from the 1000 T-cat if you want one of those.

I think there is a difference on one of the mounting holes on the front side of the case. The 01 and 02 mountain cats had the slight drop and roll and the chaincases had two different holes on the front bracket to fit either the mountain or the regular bulkhead. The older chaincases do not have the two holes but all the other holes in them bolt up the same. I would either not worry about leaving one bolt out or would just drill the hole through into the bulkhead and put a nut on the bolt instead of using the threaded insert. Incidentally the older chaincase will fit right on the 1M bulkhead.