[Tx Firefighter]

I remember 4x4s having torsion bars in front rather than coil springs.

You could put heavier springs in the front, out of say a 3/4 ton or a big block truck of the same year.

You could buy a front lift kit. FABTech makes 2wd lift kits for most common chassis platforms.

Any spring shop can de-arch your rear springs exactly what drop you desire. Plan to pay about 100 bucks to have this done if you carry them in. Considerable more if they have to R&R the springs and de-arch them.