How tight the spindle nut is also affects the rotor turning freely.
Another thought. A guy brought me his 94 GM-N body when the new pads on the R/F where worn out after only 2 weeks. Turned out the hose was turned the wrong way at the caliper. Pressing the pedal was enough for the fluid to get through, but it wasnt flowing back. Dont its your prob, but worth a look.
