I have a complete spindle with single piston caliper set up from a 68 Camaro. Where it came from before that is unknown. Will this work to convert my '66 Chevelle ? I've been told the spindles will interchange correctly but the steering arms are different. We "think" the set up is from a 70-75 Nova.

Also, I have a stock dual master and hold off valve for a 67 4 piston application and the steel lines down to the prop valve on the frame. I thought with the hold off valve, I didn't need an adjustable prop valve but am being told I still need the adjustable ?