I did the 98 and up swap but did not change out the trans.
the people had some hammering to do but they also cut off the webbing on the trans is my understanding.
Don't think the torson bar mounts were touched.

The fuel pump can go two ways I guess.
One guy cut out the one in the tank of the donor truck and mounted that in his tank.

I chose to run the summit msd pump and the areomotive regulator. This requires a return line whereas the stock does not.