Dodge Trucks dual chamber master cylinder question

[w30bob]

Hi Elwood,

I don't really trust the info the guy on the phone gave me, so I also emailed Raybestos..........but I do think it's a single chamber. It may be impossible to find a dual chamber MC with the 3 bolt mounting pattern. I've done a lot of looking and it appears that all the auto manufacturers went to the 2 bolt mounting at around the same time, which is when disc brakes came on the scene as well as power brakes. I don't believe any of the power brake boosters accept a three hole mount master cylinder. I don't know if any vehicles had dual chamber MCs with 4 wheel drum brakes, but if any did that would be the only hope of finding a dual chamber MC with the 3 bolt pattern. Sounds like a fun junkyard day adventure!

later,
bob