Fox Restricted Brakes

[93CalypsoConvert]

Picked up a new booster. That was no fun installing it

It did fix my problem though! I can lock all four.

 

[AeroCoupe]

My guess would be that the brake fluid leaking out of the master cylinder at some point is what did the booster in. Glad you got it fixed!

 

[Mustang5L5]

I concur. that rust/bubbled area suggests brake fluid was leaking down/into the booster and compromised it.