Sounds like you have your work cut out for you.
I can't answer the question of the differences in suspension. I can tell you that the frame is boxed in the front for the 3/4 ton, and open for 1/2 ton.
You'd probably want to go with the 3/4 ton frame
Just curious what makes you question the capabilities of the IFS on these vehicles?
I don't know anyone who's done the kind of conversion you're looking to do, but Mr Copenhagen may have some answers for you, as seems to be fairly knowledgeable with the cummins setups.
I can't answer the question of the differences in suspension. I can tell you that the frame is boxed in the front for the 3/4 ton, and open for 1/2 ton.
You'd probably want to go with the 3/4 ton frame
Just curious what makes you question the capabilities of the IFS on these vehicles?
I don't know anyone who's done the kind of conversion you're looking to do, but Mr Copenhagen may have some answers for you, as seems to be fairly knowledgeable with the cummins setups.