Mustang II caliper line size - Hot Rod Forum : Hotrodders Bulletin Board
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Old 09-27-2004, 03:14 PM
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Mustang II caliper line size

Mustang II again. I need to replace my brake lines to my front calipers. I want to go to braided stainless, which has AN fittings so I will need adapters. As best I can tell, the line end has a female 3/16" tube fitting and the caliper end is a 1/4" male -pipe thread?/tube fitting? or something else. There appears to be a sealing washer built into the back of the hose fitting. Can anyone tell me what size this end really is (and confirm the 3/16" end)? Most of the new lines seem to be 3-AN, but some are 4-AN. Is there a preference if I have a choice? Thanks,as always.

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Old 09-27-2004, 04:59 PM
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I believe you're talking about a standard "banjo" fitting.

3/16" braided brake lines are available from almost any street rod mail order house in different lengths to meet almost any situation. Check out Speedway Motors .

Also check out "banjo" fittings here.

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Old 09-27-2004, 06:35 PM
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Thanks, but it's not the brake lines I need. And this is not a banjo fitting. The fitting I need to match appears to be a straight thread 1/4" male. I tried a 1/4" tubing fitting and it appeared to fit fine, However, a tubing fitting wouldn't need the sealing washer at the back end of the threads since the flare would be the seal. So I know it is a 1/4" something, I just don't know what.
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Old 09-28-2004, 05:28 AM
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Then it sounds like you're talking about the bleed valve. The caliper should only have two fittings, one for the brake line and the other is the bleed valve. The brake line fittings on Mustang II calipers is usually a banjo fitting but the bleed valve is about a quarter inch in diameter if memory serves.

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Old 09-28-2004, 09:05 AM
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It's not the bleed valve,that is in place. I can only assume that these are the original Mustang ii calipers-they say Ford on them and fit. The fitting I need is definitely the brake line, it is definitely a 1/4" thread of some sort.
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Old 09-28-2004, 11:27 AM
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My thought would be 1/4" NPT, but that is a really big size thread, too big IMO for brake line fittings. Probably what you have is 1/8" NPT. 1/8" NPT can look like a 1/4" thread to the uninitiated.

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Old 09-28-2004, 12:17 PM
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Picked mine up from speedway, I tried to look the fitting up for you on their site but it wouldn't come up. The fitting I used was a 90 degree fitting that connects the caliper to either a -3 or -4 brake line, its not a banjo fitting. On my calipers a banjo would have made the line point towards the front of the vehicle due to the tabs on the caliper. I went with the -3 from the fitting to a "through the frame" fitting.
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