Need help/advice or if anyone gone through this issue before. 510 with 280zx front brake upgrade, stock rear drums, 7/8 MC. I put new calipers on, brake line, brake pad, the rear are stock drum was just services by shop everything new but the issue still not fix. My calipers are still stuck, the caliper wont release back this only happen when the car is drive for a few miles when the rotor are hot. Do I need the 280zx mc 15/16 will this help? Or do I need to adjust my brake rod?