thbertson Posted November 24, 2010 Share Posted November 24, 2010 I am in the process of converting a 89 MJ Eliminator with a slew of late model XJ parts. I am going to put a dual diaphragm brake booster on with the master cylinder. I noticed that on the front of the MJ proportioning valve there is a line which connects to a tee with the rear brake line then runs to some kid of actuator with a bracket that supports it from the differential. I was wondering what is it and what does it do. Quote Link to comment Share on other sites More sharing options...
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