4 Wheel Disc Brake Conversion

her69fastback · Feb 15, 2017

I'm wanting todo a 4 wheel disc brake conversion on my 69 fastback. I have searched the web. There are tons of them out there. Wilwood & Baer are cool but can't see me self paying $2300.00 & up for a stock car. I want a kit that will do front & back with everything. Thanks for the help

zookeeper · Feb 21, 2017

Check around for ScareBird stuff as well as Summit Racing has some very affordable stuff. I can personally vouch for the Scarebird kits being very cost effective and functional.

her69fastback · Feb 21, 2017

zookeeper said:
Check around for ScareBird stuff as well as Summit Racing has some very affordable stuff. I can personally vouch for the Scarebird kits being very cost effective and functional.

Thanks

zookeeper · Feb 21, 2017

I installed their fronts on mine that uses 1968 Mustang rotors, GM pickup calipers and a Maverick manual disc/drum master cylinder. I splurged and paid $100 for drilled and slotted rotors, had to have brake lines custom made and still only spent about $400 and it fit perfectly, took about 3 hours to install and works nicely. I plan on adding Scarebird's rear disc setup soon. The nice thing about his stuff is it uses OEM parts easily sourced from local parts houses, ebay, Rock Auto or virtually anywhere. That's nice when a caliper starts leaking in the middle of nowhere on a Sunday afternoon.

DBegley · Jun 24, 2017

I just put one of Wilwood's new classic discs on the front of my 68 GT350. This kit fit inside the ten spoke wheels. Without hesitation I would recommend this kit. The retail cost for the full kit was about $700. I can't believe how well these brakes work. I left the drums on the rear for the time being but the Wilwood rear kit is about the same cost as the front kit. I did learn that you can assume ALL these kits including the Wilwood are designed to fit drum spindles. We had to drill and tap my disc brake spindles to install the caliper bracket. The shop that did my work was doing a SBC front conversion on a 66 2+2 drum car. Said the SBC kit had a lot of issues like things lining up properly.

Another thing I learned is that most of those kits like the SBC are copied from the original Kelsey Hayes discs that were stock when our cars were new. And like I said they are made to fit drum brake spindles.

Once my car's spindles were tapped my Wilwoods went together like you'd expect. These are GREAT brakes. I also replaced the power booster and master cylinder. Brakes are one place I would not go cheap. By the way, one of my big concerns was whether this kit or any kit would fit my 15" ten spoke rims. NO one would promise that. I talked to all the vendors I could find. And all of them said if the discs were installed on the car they would not take them back. This Wilwood kit fits a 14" wheel. I got them from CJ Pony cheaper than what Wilwood was asking for the same kit. And CJ said as long as I didn't put them on the car, CJ would take them back. CJ had them in stock and to me in a couple of days. My Porterfield rear shoes took an extra week to get to me. I am happy to say I have really great brakes on my car now. The whole project including labor, the booster & Master cylinder and Porterfield shoes ran me about $2,000. Worth every penny.

her69fastback · Jun 25, 2017

DBegley said:
I just put one of Wilwood's new classic discs on the front of my 68 GT350. This kit fit inside the ten spoke wheels. Without hesitation I would recommend this kit. The retail cost for the full kit was about $700. I can't believe how well these brakes work. I left the drums on the rear for the time being but the Wilwood rear kit is about the same cost as the front kit. I did learn that you can assume ALL these kits including the Wilwood are designed to fit drum spindles. We had to drill and tap my disc brake spindles to install the caliper bracket. The shop that did my work was doing a SBC front conversion on a 66 2+2 drum car. Said the SBC kit had a lot of issues like things lining up properly.

Another thing I learned is that most of those kits like the SBC are copied from the original Kelsey Hayes discs that were stock when our cars were new. And like I said they are made to fit drum brake spindles.

Once my car's spindles were tapped my Wilwoods went together like you'd expect. These are GREAT brakes. I also replaced the power booster and master cylinder. Brakes are one place I would not go cheap. By the way, one of my big concerns was whether this kit or any kit would fit my 15" ten spoke rims. NO one would promise that. I talked to all the vendors I could find. And all of them said if the discs were installed on the car they would not take them back. This Wilwood kit fits a 14" wheel. I got them from CJ Pony cheaper than what Wilwood was asking for the same kit. And CJ said as long as I didn't put them on the car, CJ would take them back. CJ had them in stock and to me in a couple of days. My Porterfield rear shoes took an extra week to get to me. I am happy to say I have really great brakes on my car now. The whole project including labor, the booster & Master cylinder and Porterfield shoes ran me about $2,000. Worth every penny.

her69fastback · Jun 25, 2017

Thanks for the help

DBegley · Jun 25, 2017

You're welcome. Does your 69 have discs on the front now? Discs on the rear are a nice luxury but not necessary for a street car. The majority of the work is done by the front brakes. I went with a Porterfield racing type shoe on the back. You would love my new brakes. I do. It stops very well and right now. So much better than the stock setup even before my power booster went out. I wouldn't hesitate to recommend Wilwood plus they look cool. The non slotted and drilled rotors are cheaper than the slotted & drilled rotors. There is no need to get slotted or drilled rotors on a street car other than looks. If you get a new Mustang GT and have Shelby American turn it into a new Shelby Mustang, they put 6 piston Wilwoods on it. That was enough for me. Plus the shop that did my work really recommended Wilwood over all the others. CJ Pony had the best price on the Wilwoods, even a bit cheaper than Wilwood direct.

DBegley · Jun 25, 2017

By the way feel free to ask me questions on this whole project. I dug into it to make the decision. Learned a lot about Mustang brakes and kits available. My shop did not speak real highly about putting that SBC front disc brake kit on that 66 2+2. My car was in and out and that Mustang was still there. The parts did not bolt together well. They were going to have to modify the kit to get it to fit and to assemble it. And the SBC setup was more expensive than these Wilwood's.

rbohm · Jun 26, 2017

if you are looking to keep a 15" wheel, check out

http://opentrackerracing.com/product-category/products-all/brakes/front-brakes/

good man to deal with.

if you are willing to upgrade to a 17" wheel then check out

http://www.mustangsteve.com/cobrabrakes.html

he has the brackets you need, and they come with a list of parts you need to acquire, all of them re factory parts that you can obtain if needed at any auto parts store, even if you are in place like resume speed iowa, or moose breath montana.

her69fastback · Jun 27, 2017

Thanks rbohm. I'm put 17 inches wheels on it. So won't have a problem with bigger brakes.

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