Brake booster and master cylinder vibrating when engine running.

[Ricer]

Hi, I just installed brake booster and master cylinder on my 1975 Dart, the complete assembly came off a 1969 Cuda. When the engine running the booster and master is vibrating like crazy. Is there a reinforcement plate or support rod missing. here is a couple of pics. Ok pics too big, will try again.

Thanks in advance

 

[Cuda Al]

Pretty sure there should be a brace off the back of the booster
68 barracuda power brake booster


Alan

 

[crewchief]

My 73 Duster has a bracket that runs from the rear of the booster to my inner fender.

 

[crewchief]

Here's a pic before restoration of my bracket.

 

[Ricer]

Ok, that's why I have the vibration. Where could I find a bracket? Or maybe I will just fab one.
Thanks for the quick response.

 

[cudamark]

IIRC, there are two braces for that booster/master assy.

 

[RealWing]

One bracket bolts to the firewall (long one) the other one bolts to the inner fender.

 

[cudamark]

Yup, those are the ones.

 

[RealWing]

Some installed photos hope that helps
Jim

 

[Ricer]

Great pics thanks. I made one that works great. It will do until I find originals.