Looking for experienced knowledge/opinions

[theastronaut]

If you're going for handling you might want to stick with the stock control arms. The 73-87 arms have huge rubber bushings. I have a set and haven't used them; from their size and softness I'm fairly sure they would deflect and not hold your alignment settings under hard cornering. They also rot and go soft. The original 63/72 style don't really give problems unless they haven't been greased, and they're smaller diameter so you have a little more ground clearance, they don't hang below the crossmember like the 73/87 bushings do.

I had CPP's disc on my '66 with drums on the back, and a stock master cylinder. I liked the pedal feel and effort without a booster. On my next truck I'll do the same setup but use a dual circuit M/C with the same bore size as stock.

A CPP steering box would be a good upgrade vs a later model stock P/S box. Used boxes are usually loose and the steering ratio is slower than the CPP box.