Hi rossf, for your info, the clutch housing is available for Scotty 45, shaft diameters of 3/4" and 5/8". The item includes Set Screw, Engine Key and three clutch Body fastener screws and nuts.
Further advice is to double check engine shaft size before ordering. Also inspect thrust bearing and shaft end for wear as these must be in good condition for the clutch to operate correctly. The price is $65.00 wink
cheers2

Please do not PM me asking for support. Please post your questions in the appropriate forums, as the replies it may receive may help all members, not just the individual member.
Kindest Regards, Darryl grin