67 Mustang, with 66 4 lug axles disc brake conversion help - Vintage Mustang Forums

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post #1 of 4 (permalink) Old 04-20-2017, 11:13 PM Thread Starter
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67 Mustang, with 66 4 lug axles disc brake conversion help

Hi I am looking for some help and insite here. We have a 67 mustang coupe 6cyl, upon vin decoding it appears this was built in November 66 and has the 66 c4 and 66 axles/spindles front and rear.

We are going to order the wilwood 140-12535 kit for a 66 4 lug.

My question and confusion is with the master cylinder, it appears that we have a 1967 dual bowl MC for the current drum/drum set up, and in 66 it would have had a single MC.

Also we would like to keep it manual brakes.

Can I use this current drum/drum MC and distribution block when I upgrade to the wilwood kit?

Do I just need a different MC?

are there any recommendations for the parts I need the would work. We just dont have the money to get a wilwood MC and prop valve at this time.

Thanks Scott
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post #2 of 4 (permalink) Old 04-21-2017, 12:26 AM
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I just swapped my whole car from 4 wheel drum to 4 wheel disc. If you are going to be going to discs in the front I would suggest going to 5 lug while you are at it unless you are going to keep it a 6 cylinder. I don't think you will be able to use your current master cylinder one. You will need to get a disc/drum master cylinder because you don't want the residual pressure valve in the disc portion of the bowl or it can lock up the brakes from what I have heard. I believe there is a way to remove the valve but I am not positive on that. If you are going to have discs up front and drums in the rear than you will also need a proportioning valve because the distribution block I believe just splits the lines and distributes them equally to the front two and lets it run to the back. At least that's how it was on my 65.
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post #3 of 4 (permalink) Old 04-21-2017, 06:13 PM
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you will need to swap your current master cylinder for a disc/drum master. to keep it manual, you need to source a 75 granada maser cylinder for non power brakes.

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post #4 of 4 (permalink) Old 04-21-2017, 07:04 PM
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What makes you think it has 66 spindles? I don't think that works. Even though it was made late 66, its still an early 67 model. It should have 67 spindles. You might also consider going with a stock brake solution rather than the Wilwood.
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