Hi guys recently embarked on a 4 wheel disc brake conversion. Bought the complete CPP kit from OPGI with hardlines and all. Kit is pretty nice although I did have to do a little bit of mods to the rear brackets but seems to be working well without out the help of opgi or cop or any type of good instructions in the process I realized my upper and lower control arms were toast. Upper and lower ball joints shot and all bushings junk. I have orderd a set of tubular control arms for replacement Seem pretty nice, lowers a little tight going in but look like they will fit. has anyone done these? Any tips? How was the end result? Worth the change? any feedback would be great thanks