Homebrew Coilover setups

this isnt your subject. but this is what happened to me. 1959 ply wagon. stock 318. in 1969 my dad and i put a 1958 chrysler 392 Hemi in the ply. the extra weight put to much load on the torsion bar. so cranked the bar up. and bottomed the jacking bolt out. that started blowing the shock bushing out. so DONT bottom the jacking bolt out.