After waiting far too long, completed rear disc upgrade on my Dec 74 - 40. Got the most of the parts including mounting plates from poser, and was very impressed. Excellent workmanship and well thought out.
After install, I went for test drive and did a few hard sotps to see if a proportioning valve was needed.....yes it was. I locked up the rears pretty easy on dry pavement and scared the snot out of some joggers. Now that it is dialed in, it stops straight and true, and I have a ton more confidence when I need the brakes they will be there. Glad I did it , should have done it sooner.
Glad it is working great for you. Just completed a RDB conversion on a beautiful 1971 40 series that a guy spent a couple years building and I am currently installing one on a 1978 40 series.
