Hi Trevor, I cannot get my head around your modification. Any chance of a sketch.?
Is it like this picture.?
Col
Col,
Remove the cone & leg holder from the shaft
Now screw on a threaded sleeve with a stepped stud in the other end.
Stud was a bolt with the head cut off & shank turned down & threaded M8 x 1.5.
My kit had the collets for pulling oil seals and basically it was a collet center bolt.