Review on ACDelco D571A Professional Door Cylinder by Anthony Arcos

Item as advertised and fits my 1985 GMC S15. The locks are a little tight but it could just be a remnant of the original locking bar in the door. I had a closed door lock and the key didn't open it twice. I had to use a broomstick and reach through the rear sliding window to open the doors. As I said, I'm not sure if it's the lock itself or the old connector in the door. My old locks worked perfectly until the mechanic lost my keys. They also feel cheaply made.