made some 3/4 in spacers for my front shocks. had jacked the torsion bars, rode a bit jittery, spacers solved problem. beats buying new shocks when mine were still good. o yea they go under the bottom mount. youll need longer bolts by 3/4 of an inch. the size i got were m11 x 1.5 . the guy at napa said there were 10 mm but i used a die. but the "10mm" ones he sold me worked fine.