Sorry for posting this here, but I can relate to the e12 guys more than the e24 cuz most of them are e28 based. Anyway, I am in the middle of a full Motronic M30B34 swap from a 87' 535is into my 79' 633csi and one thing that I would like to know is, can I replace my Huge, Ugly, Bulky vacuum brake booster with the Cleaner, Smaller brake hydraulics from the e28? I have the complete system from the 87' and it appears that it would work, but I'm sure that I am missing something simple. Thanks for your help.<img src="" path=26956,1;-24,4;