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Thread: 63 Lesabre Estate Station Wagon rear axle ,positraction

  1. #1
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    63 Lesabre Estate Station Wagon rear axle ,positraction

    Was there a code for positraction for station wagons ? Trying to figure out what gears I have.

  2. #2
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    Here's the info out of the shop manual to ID the rear axle. From the parts book is a list of available gear sets.
    Attached Images Attached Images
    What has been, can be again. (Bob Wills, 1942)

  3. #3
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    style 4445, not sure how to read this. maybe a 3.36, could be a 3.91 ? What does P.T mean

  4. #4
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    The parts book went kind of crazy with the abbreviations:
    AT = automatic transmission
    DOM = domestic
    PT = positraction
    HP = high performance (meaning 4 bbl carb)
    CT = conventional transmission (meaning standard shift)
    EXP = export

    4400 means all LeSabres including the 4445 3-seat Estate Wagon.

    The dealer brochure explains it a little better for standard ratios:
    2.78 for 2-bbl automatic
    3.36 for 2-bbl 3-speed standard shift
    3.23 for 4-bbl automatic
    3.42 for 4-speed standard shift

    The 3.91 ratio was a special order probably used for mountain driving or racing.
    What has been, can be again. (Bob Wills, 1942)

  5. #5
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    Ok so now I need to find out if my wagon came with a 4bbl carb for HP or no HP . Right now I have the 65 401 with the 4bbl carb. Which will decide if I have a 2.78 or 3.23

  6. #6
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    Thanks for all your info and help, really appreciate it.

  7. #7
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    The first two digits of the ratio will be stamped on the bottom of the axle housing per Fig. 6-1. Hopefully those numbers are still readable.

    Don't know how to determine original engine type unless a build sheet is available. The odds of finding one hidden under the carpet etc. are not that great.
    What has been, can be again. (Bob Wills, 1942)

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