why does my passenger side breake caliper keep hanging up. on 1990 Chevrolet G Series Van (G20)

i replaced the pads, rotor, and caliper. what should i do next.

3 answers 2 comments
The problem is with the flexible brake hose..........over time they break down inside and swell holding brake pressure in the line instead of allowing the pressure to dissipate...change the hose
REPLACE THE RUBBER(FLEX) HOSE AND BLEED.
Thanks for your speedy reply! Very happy to find this website!
YOU ARE WELCOM, BRAKE HOSE COLLAPSE IS A COMMON PROBLEM! BRK. FLUID CANNOT RETURN TO MASTER CYL. THUS KEEPING PRESSURE ON CALIPER.
possible brake slider rusty