Quote Originally Posted by StraightSix
Okay, it looks like the lever that the parking brake is connected to rotates a worm gear that is in mesh with P/N 44200E. That gear train rotates and extends the piston. The reason that you have to rotate the piston to reset the caliper comes from the fact that a worm gear system can not be forced to rotate by applying force, ie. compressing the piston, to the output gear.

PBS, there could be a couple of things that would cause your calipers' pistons to be hard to reset. One would be binding in the threads of the worm gears. Another cause could be a really tight seal where the piston and the caliper o-ring interface. That's a couple of theories, fwiw.
well i'm going to just replace the calipers with advance/napa calipers anyway instead of worrying about whats wrong with the inside of the calipers. i mean if their toast, their toast right.

On a Maxima, I done them about over 100 all years, i say go with bendix ceremics, with Stock rotors, rear dont do but 10-15% stopping anyways
ceramics are already done, brembo blanks will be installed soon