The 1950/51 Ring and Pinion in the Roadmaster Dynaflow was a 3.9 . GM had no puller for this pinion in 50 or 51 (they did for the 4.1). Did Kent Moore or New Hudson create a puller for the 52/53 3.9 Ring and Pinion Ratio? The 50/51 manual says after differential gear removal you have to pound out the pinion/propeller shaft together at the front of the prop shaft. Is that the technique for the 52/53?