Hello Everybody,
Recently picked up a GMC 270 with a Hydramatic transmission.
It was removed from a '56 250. The guy I purchased it from said he bought it from a local farmer. He pulled the engine and trans from the truck when he performed a frame swap - placing the old body on more modern running gear.
I know less than nothing about these transmissions, except:
1) The case is cast iron, so it is extremely heavy.
2) The torque converter to flywheel interface is wet - so it pukes ATF all over the floor when you separate it from the engine.
3) It is a 4 speed - I think ? (That's what the guy said, at least)
First, I'm surprised that a farm truck from that era would even have an auto trans at all - especially a 250. Were these common in that era? Just for my own edification, if someone could point me to an online manual that covers these, it would be interesting to learn more about them.
Also, as I purchased this package for the engine, the trans is totally useless to me. Are these things at all desirable? Or, do people typically just install more modern designs, and ditch these? There is a lot of iron in that thing, so I know the scrap man would be interested...
Any info would be greatly appreciated.
Best Regards...
