i've had "newly remanned" calipers go within the same summer.
the only other thing to check perhaps is the rear proportioning valve? perhaps too much pressure is bleeding to the back brakes, forcing their "open" setting to have been reduced, to a rubbing?
94 mx6 - you name it - I did it, came up with it, tried it and rejected it, trapped 108mph with it, or just plain still have it. **Now in the caring hands of Chef**
98 jeep GC - 5.9L with bolt ons, lifted, locked. 32x10.5 Goodyear MTR winter/ 30x9.5 bfg ta/ko summer. Custom steel bumpers + armor. "the beast"
98 jeep GC - 5.9L with every bolt on + tune. My street jeep. small tires, but runs 13's
2004 Subaru WRX - The laggin wagon. Full STI drivetrain swap, pro-tuned, pushing about 320 awhp
2006 Subaru Legacy GT Spec.b - Anything that can be done, has been done. Fully built motor, Fully built transmission, big turbo, built axles, a 500hp daily driven fire breathing instrument of death (but you wouldn't know it if we went for a ride)