Mostly yes, the 1991 has an extra coolant sensor in the rear of the head, But the block and head are basically the same. The manifolds and sensors are all different though.
It sure will, as long as the engines are the same
yes
There wasn't a 2003 Cherokee. The last Cherokee was 2000.
Yes, it should work, as long as the engines are the same
Provided the engines are the same it most likely will work. The ax15 was used in YJ and TJ jeeps
no
The engine swap could be possible, depending on the type of engines. Both the 1991 and 1994 engines will have to be the same size, or at least have the same mounting pattern.
I had the same problem. Google "keyless entry remote 2003 Jeep Grand Cherokee".
No.
The convertible and four door sedan use the same engines.
Yes, the starter should be a direct fit
As long as they are both the same rears. Thats uf your talking axle shafts.