14. With the upper control arms attached to the crossbar with the provided rod ends and tapered spacers, it’s possible to assemble the axle tabs on the control arms and find the ideal mounting location on the axletubes (there is a long and a short tab for each side). This should be done with the axle at approximate ride height, all while double-checking the axle ends against the framerails. Now’s the time to make sure there’s no binding between the tabs and the control arms. Once you’re satisfied, tack weld the tabs to the axle.