My 72' f-250 highboy hd. suspension is stock 4" lift w/factory hd overload springs. drivetrain is mostly stock, dana 44 front(open diff),dana 60 rear w/ trac-lok 4.10's, np-435 4-speed,np-205 divorced transfer. all being pushed by a 6.9l international diesel w/ a banks sidewinder turbo kit from a 85' f-250, with 3" up to 5"straightpipe w/ stack. accessories are a custom heavy duty front bumper with integrated brushgaurd, and a custom fabricated 3.5" bodylift. Tires are basically stock for now.