I did the D60 swap on my '95 4.9L F250 a couple years back. The axle I found was from a '93 7.3 truck, so it had the heavier diesel springs. I've been riding around on them since, but am finally ready to do something about the overly harsh ride and excessive height (no need for all that extra wind drag with the 145 hp engine!). I had to go to the F350 rear block AND do a rear shackle inversion just to get it to sit level. I'd like to lower the front about 1.5" - 2" and undo the rear shackle inversion - basically get it back to stock height for an F350.

What options do I have for lower rate front springs? The aftermarket springs don't list different numbers for gas/diesel or small block / big block. The lowest spring rate I'm seeing is 2200/lbs each. Is this the small block spring?

The other idea I had was TTB springs minus the secondary leaf which should cut the 3500 TTB spring rating to about 2000, but I'm not sure I want to have monoleafs. Another option would be to pull the secondary leaf from the diesel springs and have the local spring shop copy it but with a lower rate and use it to rebuild the existing diesel spring packs.

I'm sure this has been solved before. What are guys doing?