I use the Parking Brake in my daily driver all the time. I don't like the BANG when I shift into gear when parked on an incline. Not to mention it gives me some piece of mind when hooked to a trailer or loaded up.
On my project truck I have a 5 speed transmission. I'm using a caliper/bracket assembly I scavenged from an 03 van because I wanted something with a parking brake.
The setup is disc brake with internal drum&shoes. It can be used on 6 and 8 lug trucks.
http://s1074.photobucket.com/user/wh...40847759084066