I have a 1975 highboy with a dana 60 in the front and disk in the rear as well,will this hydro boost set up work in my truck,I have a 1979 cab,all stripped down ready for paint ,want to go hydroboost

I can't give you any reason it won't work. The booster is designed to bolt into the 79 cab. As with any custom work we can't plan for every possible scenario i.e. different motors and different accessories. Most people building the projects adapt everything to work together. One thing for sure is you will love the results in braking power.