i picked up a 79 blazerer 4x4 last weekend the only problem i have is the adjustment in the gear box according to haynes manual i need to lift the truck and set it on jackstands by the frame pull off the pitman arm , turn the nut on gear box 1/4 turn and use the allen screw to adjust it... all pretty easy here's my question though the blazer has a 8 inch lift so i can get under to remove the pitman arm so do i still have to set the blazer on jackstands?