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Old 12/10/2011, 05:52 PM   #1
retroman99
 
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Factory Disc brakes

Im thinking about upgrading my 289 GTCS to front disc brakes. want to keep it as factory as possible. Any thoughts does anybody have a good picture of what the porportioning value /master cyclinder and booster. i see lots of different versions claiming to be orginal what about the one pictured? i have the stock 14 inch wheels and want to stay with that look
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Old 12/10/2011, 05:58 PM   #2
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I'm pretty sure that's the correct one.
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Old 12/10/2011, 10:57 PM   #3
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I am more than sure.

Same for 1968 and 1969. The only way to differentiate is the part number on the tube.

Midland is the correct brake booster, identified with the clamped band around the middle holding the two halves together.

Scott Behncke
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Old 12/11/2011, 06:51 PM   #4
retroman99
 
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appreciate the help sure seems like i can get all the parts to do the factory version cheaper than buying a conversion kit. just a bit more work getting all the parts are there some parts that are hard to get. I would think not since it's not gt/cs unique

Last edited by retroman99; 12/11/2011 at 07:20 PM..
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Old 12/13/2011, 07:05 PM   #5
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Don't forget that you'll also need a PB brake pedal- they're different (longer).

Neil
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Old 12/14/2011, 07:59 AM   #6
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Quote:
Originally Posted by franklinair View Post
Don't forget that you'll also need a PB brake pedal- they're different (longer).

Neil
Correct, additionally it is adviseable to also get a disc brake pedal hanger.

Don't forget to replace the brake pedal switch with the disc brake version when changing parts.

Scott Behncke
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Old 12/19/2011, 09:35 PM   #7
retroman99
 
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Quote:
Originally Posted by CougarCJ View Post
Correct, additionally it is adviseable to also get a disc brake pedal hanger.

Don't forget to replace the brake pedal switch with the disc brake version when changing parts.
thank you i was wondering if the pedal hanger was different. Saw the little video on rebuilding the dist block and porportioning valve great job!!. if somebody cant do it after watching that they ought to look for something else to do. What about the brak line routings and attach points for the dist block on the fender does it use the same holes?
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Old 12/20/2011, 08:35 AM   #8
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Quote:
Originally Posted by retroman99 View Post
thank you i was wondering if the pedal hanger was different. Saw the little video on rebuilding the dist block and porportioning valve great job!!. if somebody cant do it after watching that they ought to look for something else to do. What about the brake line routings and attach points for the dist block on the fender does it use the same holes?
Yes, same holes. You will need to change out the hard lines to the front wheels though.
You will need to enlarge an offset hole in the firewall to accommodate the brake booster.

Scott Behncke
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Old 12/20/2011, 02:44 PM   #9
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Quote:
...a disc brake pedal hanger.
???

On my '68 it is the same, just mount to a different spot on the hanger that's already got the hole for the two pedals... converted my S code convertible to factory style discs and no need to swap the mount, just the pedal...
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Old 12/20/2011, 02:45 PM   #10
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and where's this vidio that is referenced...??
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Old 12/20/2011, 03:14 PM   #11
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Here's a new brake pedal.
http://www.mpbrakes.com/products/pro...product_id=562
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Old 12/20/2011, 04:29 PM   #12
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Quote:
Originally Posted by dalorzo_f View Post
???

On my '68 it is the same, just mount to a different spot on the hanger that's already got the hole for the two pedals... converted my S code convertible to factory style discs and no need to swap the mount, just the pedal...
Drum brake hangers have 4 nutserts in them for mounting to the firewall.
Disc brake hangers have only a single nutsert.

With the addition of a booster, the booster has 3 studs and the brake hanger attaches to those studs with nuts from the passenger compartment. One bolt goes through the booster into the single nutsert of the brake hanger from the engine compartment.

Scott Behncke
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Old 12/20/2011, 08:04 PM   #13
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Quote:
Originally Posted by CougarCJ View Post
Drum brake hangers have 4 nutserts in them for mounting to the firewall.
Disc brake hangers have only a single nutsert.

With the addition of a booster, the booster has 3 studs and the brake hanger attaches to those studs with nuts from the passenger compartment. One bolt goes through the booster into the single nutsert of the brake hanger from the engine compartment.
+1 Marty

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Old 12/20/2011, 09:53 PM   #14
retroman99
 
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Dist block and Porportioning valve

Quote:
Originally Posted by dalorzo_f View Post
and where's this vidio that is referenced...??
http://www.youtube.com/watch?feature...&v=9kOCpaFGWGw
hope the link works but the guys from West Coast Cougar (CougarCJ) did it i just found it looking around on their site. Regarding the pedal i have again seen 2 different types one with a bracket welded near the top and one without can anybody tell me the difference. West Coast Cougar has a picture of the one with a bracket
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Old 12/20/2011, 10:44 PM   #15
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Quote:
Originally Posted by retroman99 View Post
http://www.youtube.com/watch?feature...&v=9kOCpaFGWGw
hope the link works but the guys from West Coast Cougar (CougarCJ) did it i just found it looking around on their site. Regarding the pedal i have again seen 2 different types one with a bracket welded near the top and one without can anybody tell me the difference. West Coast Cougar has a picture of the one with a bracket
Thanks for posting the video link, we have put together a small library of short flicks.

I am the Numbers Guy in this video.

Sounds like you are describing 1968 (w/bracket) and 1969 pedal. You can use either one, as long as you use the "J" hook for the booster rod.

I, myself, installed a complete 1970 disc brake system on my GT/CS. A 1970 disc brake pedal needs to use the "Lolly-Pop" booster rod.
In my opinion, the 1970 spindles are supperior in strength to the 1968/69 disc brake spindles. The 1970 casting closely resembles the 1969 Boss 302 spindle. Plus the 1970-73 distribution blocks with built in proportioning valves are easier to come by.

Last edited by CougarCJ; 12/20/2011 at 11:09 PM..

Scott Behncke
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