POL Brake Booster

[OrrieG]

Except for the location of the bleeders, the calipers do not care where they are mounted, its a closed pressure system. Auto manf usually mount them on the back of the caliper in front, front of caliper in rear to get the mass closer to the center of gravity; and high to keep them out of the crud. Race cars try and get them as close to the center and low as possible to lower the mass and center of gravity. Don't know about newer parts used for swaps but 70's calipers can be mounted to either side but the bleeder ends up on the wrong end (down, it is supposed to be up) creating an air pocket. I found out the hard way when I got a LH replacement for a RH application and could not get the brakes to bleed all the way out.