97 rear brakes stop on and off and car lifts too

[comet240]

hi

i have a 97 sunfire when breaking the driver rear as u step on the brakes and hold
it will hold release hold relase if u drive in revers the driver rear end lifts up till u let go of the brake

i bled all 4 brakes and the 2 adjustments under hood and still nothing and i guess the passanger rear not really locking

as if u step on the brakes lightly the rear brakes lock up what does that mean?