im running one.. If i can give you any advice.. Dont spread the springs apart to get them to line up with the perches. Make some spacers, If you spread the springs your truck will ride like ****, and flex like ****.
The perches are a 1/2 inch wider on the dodge. So make some spacers, to move your springs out 1/4 inch on each side. and itll bolt on up.
If you dont go to x over right away, then you can find somone to ream out the hole on the stock dodge steering arm, to GM tie rod end size. and use that arm instead if running a 4 inch lift block and the stock GM arm. (my friend used a dodge arm on his Chev 60 and it worked well until he was able to go x over (recommended highly)