[vc]

some of you saw in my recent parking brake adjustment post that I am going to get one of these line lock or roll control devices for my truck to help hold the truck while at the boat ramp. Well I ordered what I need today from Summit Racing and I have a question. This device basically install in-line on the brake line you want to control. So if I want to lock my front brakes when I activate this, should I install it into the line between the master cylinder and what looks like a proportioning valve, or after the valve?
Thanks.
vc