I generally remove a leaf or two and have the spring eyes reversed by a local spring shop. You gotta pull the springs anyway. Why not clean 'em up and replace the tie bolts? Inexpensive and efficient!!
Never use a minor caliber bullet on a major caliber adversary
If the springs go under the axle you can use lowering blocks between the axle and spring. On the front the axle is below the spring so blocks won't work.
"I wonder if God created man because he was disappointed in the monkey?" Mark Twain
The easiest and cheapest way to drop a truck is use a flip kit in the rear and a dropped axle in the front from someone reliable like Sid's https://www.droppedaxles.com/
'45 Ford PU 66 Valiant wagon, leaning tower of power. 79 Chevy C10 w/250 02 PT Cruiser Convertable