I got a 2010 extended cab 2wd automatic I’m fully rebuilding from the ground up, currently I’m painting the frame with epoxy resin primer and paint. For my suspension I want to rid of the torsions bar and heavy leaf springs, and switch to a coil over kit and lower it 4-8 inches for street and track performance. I find so many lift kits for these trucks but 0 proper lowering kits!

id apreciate if someone could send a link or explain how to do it costom, im a full time welder but have no idea how to engineer one of these