someotherguy
+1y
No way...not directly from an HD, anyway, the frame is 100% different. However it's just a straight axle on leaf springs, so the same basic stuff as a 4x4 SAS conversion would apply.
If you used the axle from a 3500HD you'd be 10 lug in front (5, but uses the same 10 lug pattern wheel) so then you wouldn't match in the back; can't use the 10 lug Dana 80 from a 3500HD because it's about 8" narrower than your existing rear axle, being from a cab & chassis setup.
I'd think if all you want is for it to appear taller in front to level it out that you could lift it in front without doing anything extreme.
Oh, another thing about swapping in 3500HD stuff is I'm pretty sure nobody is making semi adapters for that unique 10 lug pattern.
Richard