Aod gear ratio question

Discussion in 'Transmissions' started by maverick93, Jan 9, 2013.

  1. maverick93

    maverick93 Member

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    What are some of the gear ratios you guys are using with the AOD transmission, with 235/60r/15's? Im thinking what will be best for on the highway and just cruising.
     
  2. Mavman72

    Mavman72 Gone backwards but lookin' forward

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    I am running 3.80:1 and a trac lok...But I am running a 235/60-14...
    65 MPH cruizing rpm is around 2500...
     
  3. Dave B

    Dave B I like Mavericks!

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    I'm running 3.55:1 in mine, 1700 rpm at 65 MPH. I kept the tire size close to the same diameter of the factory tires. But I did learn, that since my AOD came out of a van, which had larger diameter tires, the shifting is screwed up. Something I hope to get corrected over this winter.
     
  4. mojo

    mojo "Everett"- Senior Citizen Supporting Member

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    How do u go abt correcting this problem?
     
  5. 71gold

    71gold Frank Cooper Supporting Member

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    3:55s...in mine...275/60/15s...:thumbs2:
     
  6. Dave B

    Dave B I like Mavericks!

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    I have to replace the governor, which appears to have been missed by the guy that originally built my transmission....
     
  7. Falcenac

    Falcenac Member

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    I had a 1960 Falcon with AOD and a Maverick rear with 2.79 gears no good but gas mileage was great.
     
  8. Wrighttime

    Wrighttime Member

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    Aod's and rear gears

    If you don't mind whats the rpm @65 ? Thanks I have same tires c-4 and gear vendor with 373 2300 @ 65
     
  9. Krazy Comet

    Krazy Comet Tom Supporting Member

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    Unless you have some odd ratio O/D in that AOD, something doesn't sound right... Those are the kind of RPMs my Grand Marquis with 2.73 & 225/60/16(25.75" tall) tires turns at 65 mph...

    I'd say this is correct, my 3.73 gear T-Bird with AOD turns similar RPM at 65mph using same size 225/60/16 tires as on the Grand Marquis...
     
    Last edited: Jan 9, 2013
  10. 71gold

    71gold Frank Cooper Supporting Member

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    I no longer have that combo in my Mav...I now have a...700R4...80 MPH @ 2200 RPM.
    I also had a...Gearnvendor overdrive...w/same tire and gear...:thumbs2:
     
  11. Dave B

    Dave B I like Mavericks!

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    It is what it is...:huh: Maybe you know more than my transmission guy?
     
  12. Krazy Comet

    Krazy Comet Tom Supporting Member

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    Probably not, but with your stated tires and gear, those RPMs don't correlate to any AOD I've had in the last 20 years... Your 65 MPH RPM would be correct if you were running something like a 31" tall tire as in a truck, not shifting at correct points is also related to RPM...

    Is that a observed tach reading or a suggested RPM?
     
  13. Dave B

    Dave B I like Mavericks!

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    That's why my tach says. I've been quite happy with the whole thing, other than the shifting, it gets great milage on long drives.
     
  14. fourbrrl

    fourbrrl Member

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    TCI does make an AOD stall that retains lock uo...just FYI
     

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