cooker,,yes i did,,so far! had alignment done and had the caster set 1 notch to the positive side and no problems to date. someone had posted the info about the positive caster setting and that the lower ball joints must lead the upper(similar to motorcycle forks). i printed it and took it to the shop and he agreed. raising the front changes the caster so that the lower joints dont lead the upper enough and you need it corrected when you install the lift. the instructions that come with the lift say take it straight to an alignment shop but dont explain why. now i know why!also,any lift over 2" will require the longer lower control arms because there is not enough room to get the caster set to positive with the stock arms. sorry i didn't update this before but i've been kinda busy with the tdr logo's and gate graphics.