>SNIP< > If you use other calapers in the front than the originals, you have a > problem because they lock up first. The only way to fix this problem > is to install a brake pressure switch who seperates the front and > rear brakes. HUH? The front and Rear calipers are already on separate lines. They do not have a common pipe. One pipe for the two front calipers goes to one port of the brake Master Cylinder and the other pipe for the rear calipers goes to another port on the Master Cylinders. The ports on the Master Cylinders are already their own entity (separate from one another). This was done in case one of the set of brakes has a problem the other functioning ones will work since they are on separate links. The fronts "share" a port on the Master Cylinder via a "T" split, same holds true for the rear BUT the front are isolated front the rear. The only thing that the front and real calipers share is the Brake Fluid Reservoir. Equal amount of pressure will go to all Calipers (front and rear) on a working system. Pressure regulators are used on computer controlled brake systems...not fully manual ones like the Delorean. Steve > SNIP< > > If you have any questions, email me privately (ed@xxxx) > > www.dmc-service.nl