Parking brake not holding

Installed Baer Touring system(rear 12') drilled/slotted rotors with powder coated calipers. Professionally installed. Parking brake does not hold after it cools down. Car will move if not left in 1st gear. Tried some recommended adjustments but not any better.Any suggestions?? Thanks 2002 GT
 
Mustangs have had recalls before about ebrakes letting go. When I first got my stang, left it in a friends driveway with just the ebrake on. Came out a few hours later, and found my car down the drive way. Lucky it did not go too far, and the ebrake was still all the way up.

I learned to just park it while in gear.

~K
 
2002GreyGT said:
Mustangs have had recalls before about ebrakes letting go. When I first got my stang, left it in a friends driveway with just the ebrake on. Came out a few hours later, and found my car down the drive way. Lucky it did not go too far, and the ebrake was still all the way up.

I learned to just park it while in gear.

~K

same thing happened to me once when the car was brand new.. a dude knock on the door and said my car is blocking the road :(