i did brake work a couple months ago and one caliper the piston was way too extended so i changed it and pads. It helped for a little bit. I know the boots are straight and they didnt look torn. I know my slider on the brackets are fine, i have already had that problem. Ill try the ebrake cable next then. If that doesnt help new calipers it is or brembo or stop-tech rear kit wiht 300zx fronts. Thanx a lot guys any opther help is welcome too.

Bryan