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PLEASE RELOAD YOUR AVATAR. You shouldn't have any problems doing this, now. Thanks again for the delay but now it is over. - Dave
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Disk Brake Conversion Discussion

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  • Thanks for posting the prints.

    Keith
    Keith
    Sedalia, Mo.
    sigpic
    CLICK HERE for Keith's web site

    Comment


    • I too would like to thank you for all your hard work on this. Although I am going with the Jeep extender bracket, you can only do this if you have or can find an original bendix booster to salvage the bracket from. There will be many who cannot find one and your bracket will be a lifesaver.

      Just for the sake of introducing a new idea. I have not tried the Jeep/bendix bracket on the car yet.
      It extends the MC 7" but only raises it 3 1/2". If it turns out there is a problem clearing the valve cover, I intend to make an adapter that will allow me to tilt the unit toward the fender by rotating it around the original push rod hole about 30-45 degrees clockwise. That should move it a couple of inches further from the AC plenum and the valve cover. It would require two adapters one to rotate the entire bracket unit and another at the booster to rotate the MC back to a level position. Has anyone here tried rotating a bracket to get the clearances needed?
      Last edited by lawyercalif; April 8th, 2012, 12:49 PM.

      Comment


      • The Bronco bracket and booster are offset.
        http://www.4wdandsportutility.com/te.../photo_07.html

        The extreme is for the Baby Birds whee it is a 90 degree "bend". This appears to be the only way to add a firewall booster to the Baby Birds. This one necessitates relocating the battery.

        Just talked with OID (Old Irish Dave) a week or so ago as he was looking into seeing if the Bronco could be used on the Baby Bird but no go.

        Give him a call and ask about the Bronco.
        Dave McCabe NM at 575-544-4729
        Attached Files
        Jim
        Jimz Greenie with a White Hat and Brown Guts (ZE-XG)
        sigpic

        CLICK HERE for Jimz web site

        Comment


        • The way they offset the one for the baby bird (#9795 pictured in Jimz Bird Post) is the type of offset I am talking about. Too bad they don't make one with a 45 degree angle, 90 would be too much, 30 to 45 would be perfect. The type of offset on the bronco bracket is wrong as it bends the booster and mc at a 45 degree angle rather than keeping them straight and moving them over a few inches as I envision by rotating the whole unit around its axis.



          Originally posted by Jimz Bird View Post
          The Bronco bracket and booster are offset.
          http://www.4wdandsportutility.com/te.../photo_07.htmly

          The extreme is for the Baby Birds whee it is a 90 degree "bend". This appears to be the only way to add a firewall booster to the Baby Birds. This one necessitates relocating the battery.

          Dave McCabe NM at 575-544-4729
          Last edited by lawyercalif; April 8th, 2012, 06:54 PM.

          Comment


          • I hope it is not a stupid question but I'm going to buy the mustang rotors from summit to follow Scarebird conversion path. There are two different rotors type by Bendix in their catalogue, are they both ok or should I prefer one?

            Type 1: http://www.summitracing.com/parts/ben-prt1018



            Type 2: http://www.summitracing.com/parts/ben-prt1019

            Lake cruisers

            Comment


            • Be carefull with your years and part numbers. It is true that a 1959 Ford Fairlane used the same spindles (C0SS 3105 & 6) as Squarebirds (1958-1960 Thunderbirds).
              1960 Fairlane spindles are different.

              This is the rotor you want (CENTRIC Part #12161000 fits 1968 - 1969
              FORD FAIRLANE, FALCON, MUSTANG, RANCHERO, TORINO,
              MERCURY COMET, COUGAR, CYCLONE, MONTEGO )...

              If you want a really nice program to convert your measurements, Josh Madison offers this zipped file, "CONVERT" as freeware CLICK HERE
              I use it all the time. - Dave
              My latest project:
              CLICK HERE to see my custom hydraulic roller 390 FE build.

              "We've got to pause and ask ourselves: How much clean air do we need?"
              --Lee Iacocca

              From: Royal Oak, Michigan

              Comment


              • Dave, thank you for your answer but I'm still confused

                I found the CENTRIC Part #12161000 in Rockauto online shop but I would prefer to order from Summit because shipping fee (international) and because they have other parts I need.

                Unfortunally Summit does not have CENTRIC Part #12161000 but only Bendix... And there are two different parts number for the same application (this drive me crazy). Also Rockauto list them as compatible spare for 1968 mustang.... So the question is: can I use one of the Bendix rotor with scarebird brackets?

                This is the part PRT1018 data

                Brand: Bendix Brakes
                Manufacturer's Part Number: PRT1018
                Part Type: Brake Rotors
                Product Line: Bendix Brakes Global Brake Rotors
                Summit Racing Part Number: BEN-PRT1018


                UPC: 18575205409
                Intended for Street Use: Yes
                For Use with Stock Calipers: Yes
                Rotor Construction: Vented
                Rotor Style: Solid surface
                Rotor Outside Diameter (in): 11.297 in.
                Rotor Thickness (in): 0.935 in.
                Rotor Material: Iron
                Rotor Finish: Natural
                Quantity: Sold individually.
                Notes: Five 1/2 in. x 20 studs included.

                This is the part PRT1019 data:

                Brand: Bendix Brakes
                Manufacturer's Part Number: PRT1019
                Part Type: Brake Rotors
                Product Line: Bendix Brakes Global Brake Rotors
                Summit Racing Part Number: BEN-PRT1019


                UPC: 18575205416
                Intended for Street Use: Yes
                For Use with Stock Calipers: Yes
                Rotor Construction: Vented
                Rotor Style: Solid surface
                Rotor Outside Diameter (in): 11.297 in.
                Rotor Thickness (in): 0.940 in.
                Rotor Material: Iron
                Rotor Finish: Natural
                Quantity: Sold individually.
                Notes: Five 1/2 in. x 20 studs included.

                PRT1019 has the same Tickness of the Centric but as you can see in the pictures I posted before there is a difference in the total thickness between PRT1019 and PRT1018...Thanks.
                Lake cruisers

                Comment


                • According to the Bendix Catalog their part #PRT1018 cross references to the Centric 12161000.
                  http://www.bendixcatalog.com/PartDet...=Brake%20Rotor

                  John
                  John Pizzi - Squarebirds Administrator

                  Thunderbird Registry #36223
                  jopizz@squarebirds.org 856-779-9695

                  https://www.squarebirds.org/picture_gallery/TechnicalResourceLibrary/trl.htm

                  Comment


                  • Good work, John. I don't know why Summit didn't look that up for a paying customer. There are at least six brands that make this rotor because millions were used on Ford and Lincoln/Mercury cars.
                    My latest project:
                    CLICK HERE to see my custom hydraulic roller 390 FE build.

                    "We've got to pause and ask ourselves: How much clean air do we need?"
                    --Lee Iacocca

                    From: Royal Oak, Michigan

                    Comment


                    • Originally posted by jopizz View Post
                      According to the Bendix Catalog their part #PRT1018 cross references to the Centric 12161000.
                      http://www.bendixcatalog.com/PartDet...=Brake%20Rotor

                      John
                      Thank you so much John! I really appreciate!

                      Another question.... Anyone has never tried just a Master Cylinder upgrade keeping the original K/H underdash booster? I mean it seems to be a good way to make a cheap and easy conversion to dual (and eventually disc) brake system. Am I wrong?

                      http://www.parts123.com/birdnest/pdf/Page52.pdf
                      Lake cruisers

                      Comment


                      • You can change the master cylinder to a dual for drum brakes but the under dash booster will never work for disc brakes. It's woefully inadequate.

                        John
                        John Pizzi - Squarebirds Administrator

                        Thunderbird Registry #36223
                        jopizz@squarebirds.org 856-779-9695

                        https://www.squarebirds.org/picture_gallery/TechnicalResourceLibrary/trl.htm

                        Comment


                        • I see.. Thank you. So this is why nobody already did it
                          Lake cruisers

                          Comment


                          • Disk Brake Conversion

                            To amplify on what John said regarding the KH under dash unit, here is what Howard Prout and I both did with ours. When we went through our disc brake conversion we both decided to leave the KH unit in place rather than taking it out. As John said, it is inadequate regarding the disc brake conversion, but it has not caused either one of us any problems by leaving it in place.

                            Ray Clark - Squarebirds Administrator
                            The Terminator.....
                            Contact me via Private Message for my email address, or Call (Cell) 210-875-1411

                            https://www.squarebirds.org/picture_gallery/TechnicalResourceLibrary/trl.htm

                            Comment


                            • Disk Brake Conversion Discussion

                              Hi Roberto, I am sure there are people who have done the conversion from single to dual MC. I do not see why you cannot do it, but I would hope others with a lot more experience than I have will chip in and comment. I do not know what problems might be encountered by just changing out the single MC to a dual MC, without adding a power booster between it and the firewall. Others might know. For that matter you probably could also add the power booster to it if you wanted to, without doing the disc brake conversion. If you were thinking of going disc brakes, you would be that further ahead. However, those with a lot more smarts than I have need to comment about this to help you. As I said, Howard and I (and I think others) opted to leave our KH unit in place rather than mess with taking it out of there. It has caused us no problems. As John said you CAN change the single MC out for a Dual MC. Without going to disc brakes.

                              Ray Clark - Squarebirds Administrator
                              The Terminator.....
                              Contact me via Private Message for my email address, or Call (Cell) 210-875-1411

                              https://www.squarebirds.org/picture_gallery/TechnicalResourceLibrary/trl.htm

                              Comment


                              • New boosters come with their own reservoir and check valve. That means the original tank and under-dash booster may be removed, provided you don't have vacuum wipers (which don't work worth spit, either).

                                When Howard was troubleshooting his system he disconnected his treadle-vac booster and it made no difference. That made sense to me because they require foot pressure to open the valve, but the output assistance is light. Notice Ford (and Chevy) dropped this system and never went back. Yep, my cousin's '57 Bel Air has one and it doesn't help, either. - Dave
                                My latest project:
                                CLICK HERE to see my custom hydraulic roller 390 FE build.

                                "We've got to pause and ask ourselves: How much clean air do we need?"
                                --Lee Iacocca

                                From: Royal Oak, Michigan

                                Comment

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