when i did mine i remember reading that you have to have the car on the ground. or up on car ramps.. if you dont it puts some 'stress' on the bar making it harder to install/uninstall.. its just a matter of a few bolts and replace took me bout an hour to do rear HD mounts, end links and new bar
fronts a bit longer tho and a bit more tricky
even better look at this link
http://www.northursalia.com/modifica.../rearsway.html