Hi Mudders, I am in the process of adding disc brakes, front and rear, to my '70 FJ40. I will need a new master cylinder and split my brake lines. I need to run a non booster Master Cylinder because of space considerations. I don't want cut the firewall brace. I expect to need a proportioning valve to balance the rear brakes. My question is, can anyone give me recommendations on alternative Master Cylinders? It could even be non-Land Cruiser or Toyota. I need it to get the job done. Thanks!