There seem to be a number of threads on converting freight & non-electrified rolling stock from 2R to 3R, but very few if any for passenger cars!
My questions are pretty straightforward:
1.) what do I need to convert a 2 rail Atlas O CZ dome chair or sleeper to 3 rail trucks? Simply buy the 3 rail Zephyr trucks and re-wire? Recently acquired a 3 rail dome-chair and These seems like they’d be an easy conversion
2.) what do I need to convert a 2 rail Atlas O Horizon to 3 rail trucks? Again-buy Horizon trucks & rewire?
3.) what do I need to convert a 2 rail Atlas O(These are former Weaver Tooling) Pullman Bradley to 3 rail trucks? Already have 3 of these in 3 rail(KC & Penn Central by Atlas, NH by Weaver). I was able to snag one of the brand new LV Pullman Bradley’s for less than 40% of the going rate on eBay- but it has 2 rail trucks?
Below are 2 pictures comparing the undersides of the truck’s for a 2 rail Pullman Bradley and for a 3 rail Pullman Bradley(both by Atlas):
2 rail
What trucks would I even use? Commonwealth express trucks? And would I need a different coupler? I’ve consulted atlas diagrams but have found nothing pertaining to the Pullman Bradley’s.