Hi.
Finally got the Hub off. the Mk3 puller worked!, (5" weldable pipe flange, 2-1/2" Galvanised Pipe 1" BSW Threaded stud with 2 nuts, and a lot of rather scruffy weld!), with the judicious use of the 7lb hammer!. (Mks 1 and 2 failed, But I have to admit my welding was not of the best!.) I had to Modify a bearing puller to remove the Trunnion, but the surfaces look as if they will take a new Needle roller. Hopefully the last damaged threads on the shaft can be recovered. Does anyone know what the thread form/dia actually is. I am thinking about 15/16 A-F?.