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Disc Brake Conversion For Javelin |
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Mopar_guy 
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Joined: Jun/07/2009 Location: Ohio Status: Online Points: 4826 |
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 Posted: Mar/03/2015 at 7:15pm |
Just a word of caution - look carefully to see how much the drum is staked on to the hub before you start swinging. I have two sets of hubs that were staked so hard that I had to cut the stud off and drill it out. I had to get oversized studs (the knurled part) and even a couple of those I had to tack weld because the holes in the hub were so deformed due to the staking by the factory. |
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prostreetamx
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Joined: Jul/15/2007 Location: Las Vegas, NV Status: Offline Points: 1532 |
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Posted: Mar/04/2015 at 8:03am |
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There is a trick to removing the drum from the hub that does not involve a BFH. Mine were staked in place so I slipped a hole saw over the stud without the arbor bit. I chose one that was a snug fit over the stud so the inside teeth removed most of the knurl. I then gently tapped the studs with a hammer to remove them. I did replace them with longer studs to go with my thicker aftermarket wheels and 1/4" wheel spacers to clear my 13" brakes but I did not destroy the original studs or damage the hub.
One of the main issues with useing stock original brakes on a daily driver is getting replacement parts if you need them right away. Good luck finding rotars, pads or calipers on a trip out of town with 40 year old brakes. I can get replacement parts for my brakes at many parts houses with no special ordering. For a hobby car that is rarely driven, that is not an issue. My Prostreet 77 AMX has been sitting for several years and was only driven about 5000 miles in the last 15+ years so brake wear has not been an issue. It still runs the original, rebuilt brakes. It doesn't take $1000 to run decent, easy to source modern brakes. I just returned from a just under 1000 mile road trip in my Javelin and have about 20,000 miles on this car after the brake swap to 13" disc brakes for $300. All I had to do was trim some off the center of the hub and fab up some 1/4" thick steel brackets with a drill press and angle grinder. http://theamcforum.com/forum/13-disc-brakes-for-amcs_topic49307_page3.html?KW=13+brakes
Edited by prostreetamx - Mar/04/2015 at 8:06am |
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Richard Payne
Las Vegas,NV 72 5.7 Hemi Javelin 77 Prostreet 401/727 AMX,  [/URL]
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69AMX364
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Joined: Jun/07/2009 Location: Dallas, TX Status: Offline Points: 150 |
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Posted: Mar/06/2015 at 4:31pm |
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I had converted my 69 AMX from 4 piston brakes to the 71 up version with single piston. Also removed power booster setup and went with the 4 wheel drum master cylinder after removing the residual check valve. Took only a little more effort to push the brakes, but was easy to adjust to the feel. And the brakes still would work when then engine died.
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farna wrote: