Rick Ehrenberg addressed this question recently in an issue of Mopar Action...that was his best guess was needed a shorter rod, the explanation is that if the rod is a bit too long, on release the master cylinder does not uncover the interior port to release the pressure. Another possibility I believe he suggested to the questioner is if the drum side (the front reservoir on mopars) of the new master cylinder has a residual pressure valve in it and it was accidently plumbed to the front discs instead of the drums, or if the new master is an all-drum model and has residual pressure valves. Bill & Kathi Parker, South Central Indiana...'49 Plymouth 2 door; '62 Plymouth Max Wedge; '64 Dart convertible; '65 Barracuda \6; '65 Imperial; '68 Barracuda FB 340-S; '69 Barracuda FB now 360; '70 Challenger now 440; '72 Cuda '340 > To: 1962to1965mopars@xxxxxxxxxx > From: bbjt3@xxxxxxxxx > Subject: Brakes > Date: Sat, 11 Sep 2010 14:25:07 -0700 > > > Here is a puzzler for all you gear heads... > I converted my 65 Coronet 2 dr post to front disc brakes. > I used the spindles from a 78 Aspen. > I installed the matching booster and master cylinder also. > Took the car for a shake down run and after 1/2 half block the brakes started dragging. > Could the rod from the brake pedal bee too long and keeping the booster activated? > It's as if the calipers are not releasing. > Calipers are new and the rubber lines are new also. > Has me stumped. > Any suggestions appreciated. > Sold my spindles for my drum brakes or I would re install them. > It's not going to be a daily driver so why did I convert to disc brakes any way. \ > > I sure would like to drive a few miles this year and it's getting frustrating as hell to fix one problem and then have another pop up. > > Later > Bill Harrison > 65 Coronet 2 dr post. > > > ---- > Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! > > 1962 to 1965 Mopar Clubhouse Discussion Guidelines: > http://www.1962to1965mopar.ornocar.org/mletiq.html and http://www.1962to1965mopar.ornocar.com/general_disclaimer.html. > > -- [Non-text portions of this message have been removed] ---- Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! 1962 to 1965 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html and http://www.1962to1965mopar.ornocar.com/general_disclaimer.html.