Not all disc brakes are the same, and there is no standardized, bolt-in replacement available over the parts-place counter that I've heard of. Have you called AAJ Brakes or are you engineering this yourself? Are you planning to keep the Imperial lug pattern? How? If DIY: What disc/caliper/proportioning valve/wheel combination are you using? That will have an affect on what MC to use and would point to what MC to use. Another question that I don't know the answer to that should be asked is how to calibrate the volume of fluid delivered by one MC vs another, as different disc calipers likely have different volumes required to produce the pressure needed to operate as designed. Careful on that bag of worms. You may have some research and due dilligence to do before conglomerating parts and doing a conversion. I am not aware of a direct, bolt-in chrysler product that will do this, but others here may. Someone supposedly took a later 1970-73 (complete) system and installed it, but we have not seen photos and I don't remember the outcome. The club archives would have that if memory serves. Tried looking there? Kenyon Wills ----------------- http://www.imperialclub.com ----------------- This message was sent to you by the Imperial Mailing List. Please reply to mailing-list@xxxxxxxxxxxxxxxx and your response will be shared with everyone. Private messages (and attachments) for the Administrators should be sent to webmaster@xxxxxxxxxxxxxxxx To UN-SUBSCRIBE, go to http://imperialclub.com/unsubscribe.htm