I used coil overs when I built my Model A Tudor hot rod... they produce a pretty stiff / harsh ride.

The factory set-up on the 63-66 trucks is pretty hard to beat. You can buy lowering springs that vary 2", 4" or 6" for about $100 a pair. No welding, no bracketry to design.. just bolt them on.

Easy Peazy Spring Swapeezy thumbs_up

In the Stovebolt Gallery ~~ "The Orange Crate" 1965 C10 SWB Step Side Build Thread

Inspired to be different. Different in a way of my own, not in a way that others strive.