Well you both gave me more good information to consider; unfortunately I already pressed the old ones out- but with no issues. It took 8-12 tons on the press gauge to get them out. So far so good. I am making the new ones so I can determine the press fit and clearance etc..


55 GMC 3100 2nd Series
71 GMC 1500 Super Custom
1956 Thriftmaster
1954 Blue Flame
1962 Thriftmaster