use the 79 steering.you will have to drill holes for the later idler.the booster will bolt to your firewall.you will need to extend the push rod.i used a short piece of all thread and a barrel nut.you will need to drill another hole in your pedal,no big deal,easy to get to and soft metal.you won't like the three inch drop springs,the a arms will be tilted up and the top of the wheel pushed into the fender.