If you have the type of foot you need, but don't have the proper shank size, but you have another foot
that you don't use, both feet can be cut off half way up the shank (has to be a perfect fit of course) and
welded by your repairman. (He will know what you mean) When this is finished you would not even know
that it had been done and works perfectly. I have done this many times and they have always been
successful. Good luck with it. lol Gleniveve