Yes I put the mono leafs on the front a few months after I got the truck. The front springs were sagged unevenly and a local guy had these monoleafs for sale (forum swapmeet). His suburban wasn't low enough and he went to a dropped axle. The mono leafs are a vast improvement on ride.

I never planned on lowering it but do like the look and will see what lowering the rear about 3 inches will look like.

Ditto on changing front shocks, you need shorter and better shocks for the new handling.

54 3100 with 235
62 flatbed dump C60 with 261