ktm adventure sr clutch prob

My son has a 01 adventure sr (moto morini) I have been having clutch probs and have ordered the superceded part. The new part is the 3 shoe type with the old crank taper dimension. The problem is that the shoes stick out of the drum and the nut also does not go all the way on anymore. I have been told this is normal and that the drum & nut are still same part #. I am waiting for the side cover to get back from getting heliarced (clutch parts came out of it), so that I can test fit. To anyone who has been down this road any info would be appreciated....

Thanks I would appreciate it if you could find his #. I hope he knows the adventure sr, as most everyone that I have talked to seems to work on the pro sr & jr only.