View Full Version : Front disc conversion on a 1964


neal64ss
Sep 23rd, 08, 1:05 AM
For anyone thinking about a front disc brake conversion. I recently finished this job on my 1964 chevelle and thought I would pass along what I learned, only seemed fair since I have taken so much info from this site.

I purchased a kit with rotors, spindles, bearings, calipers, backing plates, caliper brackets, and brake hoses. I recommend going this route as seems that you can save money and not have to reuse old parts. In my case the front brake assemblies were at least 20 years old and maybe older with the exception of drums, wheel cylinders and shoes..

I thought I might make my drum spindles into disc spindles but I found rust in the wheel bearings/spindles on both sides so I decided to use the new spindles instead.

Had to drill out the holes in the steering arms to 1/2" and get new bolts. Found that I could use a C-clamp to hold the steering arms on the front of the old spindle before removal and easily drill the holes out and never had to remove the steering arms from the steering linkage.

Found that penetrating oil and a small sledge are the right tool for spindle removal, after several hours thinking it would work with a smaller hammer. I ruined all my ball joint boots with a fork, if I had it to do over again I would not use the fork and have good boots.

I had to clearance the caliper brackets to fit inside the 14" SS 396 wheels, didn't take much but it had to be done. See http://www.chevelles.com/forums/showthread.php?p=1984856#post1984856

Now I begin the change from old single reservoir master cylinder to a 1" bore dual reservoir master cylinder and proportioning valve. Hope to be finished by tomorrow afternoon. :yes:

neal64ss
Sep 25th, 08, 1:41 AM
I purchased the early 1970's style corvette master cylinder with 1" bore to replace my 1964 single reservoir master. Bought a disc/drum brass proportioning valve instead of an adjustable style. Bought the kit that has the lines and bracket to install proportioning valve.

Went to mount this with the normal bracket that puts the proportioning valve to the left and slightly lower and had clearance issues with the fender well. For 1964 with this setup you will need to mount the proportioning valve under the master cylinder. I fabricated a bracket myself, there are several places you can buy this bracket also.

Hopefully one more trip to the parts store for some 1/4" to 3/8" adapter fittings and I will finally be ready to bleed the brakes.

In hindsight it would have been much easier (and less expensive) to just plumb an adjustable proportioning valve to the rear.