I have an 1987 F-150 that I am planning to put a remanufactured 300 motor in. I have owned this truck for many years and the transmission ( a C6 I believe) was giving me some trouble before the engine finally wore out. I am considering replacing the transmission at the same time I put the new...

I have a 94 F-150 with a straight 6 cylinder engine and an automatic transmission that has around 200k miles on it. For a couple of years now it has had a random problem with being slow to shift into drive sometimes. It will always shift into reverse right away but sometimes it can take a minute...