Thanks for your responses to those questions. It just seems that if they were so nortorious for being bad engines that near the end more of the 37's would have been sidelined. It seems that both classes the 36's and 37's as you pointed out had there "bad ducks." I guess it's surprising that the 499 was retired before the end. I believe in the end it was the 492, 493, 497, and 498 which all except for the 492 ran until 1968 along with 483, 484, 488 & 487--I think the 488 last ran in 1966. So could it be said that those eight were the best of both classes or was it just circumstance that kept those particular engines in service. I know the Grande stated that the 482 wasn't capable of seeing service ever again--alas and thankfully it is in operation to this day. I guess bottom line is they performed their jobs much better than anyone expected and longer than probably expected as well. Thanks again for sharing your knowledge--it is appreciated.
William
aka drgwk37