Suitable tranny? What Hurst parts?

Discussion in 'Technical' started by John B, Dec 11, 2011.

  1. John B

    John B Member

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    I purchased a top loader, bellhousing and flywheel a few years ago. I naively thought a toploader was a top loader. Since then, I've learned that there are many kinds of top loaders. I decided to ID mine. Here's what I learned.
    Its a RF C8AR 7006-D W 2 C27 (on the "main" case), with a tag reading RUG E 2 and 042909, and on the tail housing, C4ZR-7A040A.
    According to the ID charts on the David Kee site, this main case was used on 1969 Mustangs and Cougars with 289s, with a wide 28-spline (whatever that means_reference to the shaft, I presume?)
    The tail housing numbers indicate that this tail housing was used on 1964-73 Mustangs and Cougars (289, 302, 351 engines, 14" length, 25 or 28 spline).
    The flywheel is marked C5AE 6380-E with a tag reading 2C16.
    I have 3 questions I'd like help with.
    Is this transmission suitable for use on my '73 Mav with a warmed up 302?
    Is this a suitable flywheel and will it work with a C5AA-6394-B bell housing?
    What Hurst shifter (Competition Plus) and install kit should I order for it if it is suitable? Any help you can give would be appreciated. Thanks
     
    Last edited: Dec 18, 2011
  2. Joe Dirt

    Joe Dirt BBF life

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    What you have is a small input/small output wide ratio transmission it is fine for a hot smallblock
     
  3. paxtond

    paxtond Member

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    that tailshaft is supposed to be the best one for swapping into a Mav / Com. It should have the rear mount shifter mount holes. The Falcon / Fairlane style require the shifter to come through the floor a little closer to the dash as I understand it.
     
  4. John B

    John B Member

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    What do the terms "wide ratio" and "close ratio" refer to, and which is best?
     
    Last edited: Dec 12, 2011
  5. tody

    tody Member

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    Wide Ratio: 2.78 1st, 1.93 2nd, 1.36 3rd, 1.00 4th, and 2.78 Rev.
    Close Ratio: 2.32 1st, 1.69 2nd, 1.29 3rd, 1.00 4th, and 2.32 Rev.

    wide ratio is generally considered better for street use.
    i use virtually the same transmission (RUG AV1) and it mounted perfect in my car. i used the 1971 mustang hurst competition plus shifter it came with - again, perfect fitment.

    the bellhousing and the flywheel you have are both 164 tooth from what i was able to google - should work good together.
    mustangtek says the flywheel will take a 10" or 10.5" clutch:
    http://mustangtek.com/flywheel/C5AE-6380-E.html
    i was quite happy with a RAM clutch - look here in the lower part of the site:
    http://www.ramclutches.com/Applications/ford_1.htm
     
  6. baddad457

    baddad457 Member

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    A 164 tooth flywheel uses an 11" clutch. The 157 tooth originally used a 10" clutch and later used a 10.5 clutch. While the 164 tooth will fit, these cars are ideally better suited for a 157 tooth. The difference is the diameter of the flywheel and size of the bellhousing, the 157 just fits better. All that said, I would buy a new flywheel, it's really not wise to use a 40-something year old flywheel of questionable history, not only how it was used, but how many times it's been resurfaced, there is a minimum thickness you should not go below. As for the shifter and install kit, order the kit to fit the tailhousing, not the car you're putting it in.
     
  7. John B

    John B Member

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    I sure do appreciate the input from you guys. I'm pretty green. This is my first build, even though I'm 61 years old. Most of what I know about cars, I learned looking into the engine compartment from the fender opposite to where my dad was working. He was quite the hotrodder. Funny thing is, I remember him bragging about changing his '36 Ford from a floor shift to a column shift, and from cable activated brakes to hydraulic brakes. He'd find it pretty funny to know how much time, effort and money I've put into converting my column shift automatic to a 4 on the floor standard and to 4 wheel disc brakes.
    Again, thanks for any help you have, or may yet provide.
     
  8. mercgt73

    mercgt73 Member

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    I was running the 164 tooth flywheel and matching bell in front of my toploader. Even with stock exhaust manifolds, it is TIGHT around the pitman arm! Like mentioned, try and go with a 157 tooth.
     
  9. John B

    John B Member

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    Does anyone know the part numbers of suitable bellhousing for a 157 tooth flywheel? I'm planning to run the Hooker 6901s I bought and don't want to run into any trouble with space. Thanks again.
     
  10. Dave B

    Dave B I like Mavericks!

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    Hey John,
    Peter Faul, at Mustang Pony Cars here in London is a David Key dealer, and has lots of 4 speed parts, I'm sure he could answer any questions you might have, PM me and I'll get you his number.
     
  11. baddad457

    baddad457 Member

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    I have an extra 157 tooth bell to sell, PM me I'll let it go cheap as it needs helicoils in the bolt holes.
     

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