I have a location on a 75 vilaint need to know if the front bolt pattern would be 5 on 4 1 /2 thanks

 

75 should be disk brakes and large pattern. If you want to put the discs on your car, you'll need the upper control arms, the spindle and of course brake parts, caliper, etc

I'd get the proportioning valve (brass block down below the master) as well as the master and at least the NUTS off the old lines. That's because the master and prop. valve do not use "standard" nuts for 3/16 tube.