I am looking for info on what transmissions will bolt up to the current engine in my 1983 F-150. The engine is a straight six 300, 4.9L and currently the transmission is a 3 speed automatic. I do not know the specific transmission number, but I can try to find it if needed. I would like to replace it with a 4 speed automatic from a newer truck, but I'm not sure how much trouble it would be to get it working properly. No problem bolting it up, but I'm not sure about the electronics on some of these transmissions. There is nothing wrong with the transmission in the truck now, but I don't like taking the truck on the highway because it revs so high in 3rd gear and burns way too much fuel at that high rev.
Any info on the above is greatly appreciated. Sharky