auto to manual conversion

Discussion in 'Transmissions' started by torquingturtle, Oct 26, 2021.

  1. dyent

    dyent Member

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    While that kit will work, unless you are a contortionist, it might be easier to remove your Auto Pedal Support Bracket and install the kit and/or install the Manual Pedal Support Bracket you already have..........
    David

    You mentioned that your Auto Pedal Support Bracket uses the "bolt/nut", to install the "roller kit" you will have to drill out the side holes, since the bolt/nut is 3/8"........
     
  2. Krazy Comet

    Krazy Comet Tom

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    From what I could find in Ford Master Parts Catalog, supports for manual & auto are same. Assuming that's so, you should be able to transfer the manual components to automatic support. I did just that on my Cobra when I replaced it's broken support with a automatic unit.

    BTW the support for non-locking steering column is different than locking.
    Yeah, seems strange but I just tell 'em, not explain 'em.
     
  3. dyent

    dyent Member

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    Here is picture showing both the early 5/8" shaft/red clip (pre 73?), which is a direct swap to manual clutch pedals and the later 3/8" bolt/nut (post 73), which has to be modified to install manual clutch pedals........
    My 74 Comet w/302 auto came with "bolt/nut" and my 73 Comet w/302 auto came with 5/8" shaft/clip.
    So if your Auto Pedal support uses what is seen in picture on the right, then you will have to remove and swap out the Support Bracket with the Manual Pedal Support Bracket.
    David
    P1020874.JPG
     
    Last edited: Feb 4, 2025
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  4. Krazy Comet

    Krazy Comet Tom

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    No doubt I should have searched deeper.

    I have the '65-'72 MPC but anything later is on another computer.:yup:
     
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  5. McQuick

    McQuick Member

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    Very interesting option, thanks. If nothing else it tells me that those bushings (trunnions, whatever) are NOT going to be easy to remove from the MANUAL support bracket; the Scott Drake instructions say they are "swedged" into the support bracket, and show removing them with a die grinder.

    But....IF that Scott Drake roller bearing bushing kit would fit into the EXISTING AUTO BRACKET brake pedal bolt holes without having to drill/cut/ream, then I could install them with the BRACKET IN THE CAR, which is what I'm trying to figure out how to do.

    I guess I won't know until I pull the brake pedal and see what size the brake pedal bolt holes are, but fingers crossed, and thanks for the clue in the ongoing investigation.
     
  6. McQuick

    McQuick Member

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    That is very helpful, thanks so much. Not the answer I was hoping for, but at least it keeps me from going too far down the wrong rabbit hole. I will resign myself to swapping out the auto support for the manual. I'm sure I'll be back to hit you up for more pointers along the way!

    Now I have to find a dude with a sandblaster so I can clean up that manual support.
     
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  7. dyent

    dyent Member

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    Just to give you aheads up, before you go and sandblast the manual support, measure the 4 mounting holes on the square end (mounts against the firewall), the vertical holes should be 2 3/4" center to center, which should match your 74 auto support. I have found that 70-73 where 2 1/2" and 74 later where 2 3/4", so I would recommend that you check this and make sure both brackets have the same vertical spacing.
    You can measure your 74 either crawling up under your steering column, should see ends of bolt/studs or can measure from engine compartment. If you are not sure what I am talking about, I can post a picture of area to check.........
    David
     
  8. McQuick

    McQuick Member

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    I am NOT a contortionist, and yes it is VERY crowded up under that dash!
     
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  9. McQuick

    McQuick Member

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    Lucky me, the rusty manual bracket I have has the 2-3/4" spacing. Tomorrow I will confirm that the auto bracket in the car is also 2-3/4", but it's a '74 so as you say, it should be....which means I have one less thing to worry about when I start that project! Thanks again
     
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  10. rthomas771

    rthomas771 Member

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    When I went to manual from automatic, I use a '71 support on my '74 with no issues.
    On a side note...The early '70 support has a different bolt pattern where the steering column bolts to the pedal support...skinny column v fat column.

    20240229_140157.jpg
     
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  11. Krazy Comet

    Krazy Comet Tom

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    My Cobra has early setup pictured on left, only failure I've seen were loose bushings in bracket. Operating a 11½" clutch, was failing by 50K mi. As far as bearing, bushings and nylon inserts were still OK. I replaced whole assembly with a used, from automatic. At 112K mi, it's still fine.

    BTW The big clutch is bear, has also ripped the arm out of Z bar and broken bolts on bracket mounted to block. Seen others with broken bolts.
     
  12. mojo

    mojo "Everett"- Senior Citizen Supporting Member

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    That Bear clutch a 3 finger? Hope all is well with you Tom!
     
  13. Krazy Comet

    Krazy Comet Tom

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    Yeah it's long type, three finger.

    Thanks for asking, hope you are doing well.
    Been having therapy to get over some lingering effects of a stroke, I'm gettn' there.
     
  14. mojo

    mojo "Everett"- Senior Citizen Supporting Member

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    I thought it may have been 3 fingers; back in the day had FE 61 Galaxie top loader and 3 fingers didn't know anything about diaphragm clutches and don't even know if they were widely available for Ford products. I do know I would not be able to drive that car no more than a few miles today. Technology has made great strides since then but still would not go another 3 fingers if I were to do it again.
    Sorry to hear about the stroke, my wife had one in 2010 her right side extremities are paralyzed, she was not able to recover over the years; hopefully that won't be the case in your situation.
     
  15. Krazy Comet

    Krazy Comet Tom

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    Sorry for wife's issues, guess I'm lucky, just have some weakness on my left side. Had been a slight problem for a couple years, then came to head in Oct, slurred speech & unsteady walking. MRI indicated I'd had four strokes prior.

    As long as the "helper" spring under dash is in place, Ford's linkage type clutch should be fairly easy to operate. When I first bought the Cobra was our only car, wife drove it without issue. In the '90s I had a 5.0 Mustang with diaphragm cable clutch (In my opinion suck), made my knee hurt to drive it, sold it after a couple years.
     

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