I have an old Performax 16-32 sander that I inheritated from my father. I turned it on today and the drum would not spin. Upon inspection I saw that the drum shaft coupling was broken and another piece (spider I believe) was broken as well. I have a model # 629G01. Will the parts for a Jet (629004K) work on my machine? If not can you advise me where to find parts for my sander. Thanks