No, they will not interchange.
If it is gray, then yes.
The bell housing is between the engine and the transmission.
Some do, some don't. If it does you can see it at the rear bumper.
They are under the coils, next to the fuel injectors.
A Jeep Cherokee had a AW 4. A six cylinder Grand Cherokee had a 42 re. An eight cylinder had a 45rfe.
Try replacing the turn signal flasher
The lifters are not adjustable. The head has to be removed to access.
pull the fuse
you un plug the jeeps battery for a few minuets and then the computer resets.
you take it to the dealer caz you cant do it for sure its incredably complicated
2 feet