Only because i'm trying to keep the COG as low as possible (without cutting a ton of body off) The Marlin 4" spring's going to be much more lift then the 63's.
Decisions, Decisions...
I know its a little different.
I had a tg 4" kit in the front which ended up sagging out and replaced some leafs with some all pro's.
However. With both of those springs i have to run a 2" block out back for it to sit level.
So i would think some stock chevy's and a custom pack up front so it sits close to level would be a good height.