I am looking at a 1950 chevy 3100 being sold from an estate. It is a pretty clean looking truck, pretty well maintained. It appears to have a 1954 engine and matching hydra-matic transmission. There is no other paperwork or info on the truck. The man died unexpectantly and other than a title there is nothing. So I have no history. I am unfamiliar with this transmission. Is there a benefit to having it over the original power glide transmission that I assume was original to this truck? Also does the engine/trans swap really decrease the value of the truck. I plan to try to keep it stock and just drive it.