Hey Bucky this is Mat. I met you last year on powertour and this year i was referred to you by Matt (RAIV70JUDGE) for some possible advice on the front disc brakes i am trying to install on my 69 Nova. This is the situation, i am converting my front drums to disc using an oem style conversion using wilwood D52 calipers as an upgrade over the stock GM units. The install went smoothly but the test drives did not. The brakes bite excellent and stop the car superbly, the problem is that the calipers will not release from the rotor enough causing the brakes to engage all the time. Matt said he thinks you had a similar issue with similar parts maybe. Any info will be much appreciated. Thank You.