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T9 Replacement Compatibility

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  • T9 Replacement Compatibility

    I have a M15A-20 and the output and pilot bearing are on the edge. I have not looked at the gear teeth. I planned on replacing the bearings and if any gear looks bed, replace them also.

    But ebay has a newly rebuilt T9 for $300 but how can I determine that it will fit?

    The ebay transmission came out of a M16 which I presume had the big six not the Champion I have.

    Will the ebay transmission fit my M15A-20?
    1948 M15A-20 Flatbed Truck Rescue
    See rescue progress here on this blog:
    http://studem15a-20.blogspot.com/

  • #2
    On a Car, the Champion clutch splines are smaller than Commander, meaning the Trans. Input shafts are also.

    On a Truck they may be the same, someone will have to look up the input shafts, or Clutch Disc. in the M Series Truck Parts Catalog to be sure.

    My suggestion would be to use a REAL Trans. NOT a straight cut gear, double clutching ancient type. The T-98 4 Speed is just the best, smoothest shifting tranny ever.
    Are you able to determine from the seller's measurements, the Bolt Pattern dimensions to know it the Case fits?
    StudeRich
    Second Generation Stude Driver,
    Proud '54 Starliner Owner

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    • #3
      Thanks. I looked up the part numbers and the M16 T9 does have a different input shaft than the the M15/M15A T9.

      I think I'll pass on the ebay tranny. I'm getting advice on Truck Talk that I should chuck the T9 and go with a T98. Maybe someday...
      1948 M15A-20 Flatbed Truck Rescue
      See rescue progress here on this blog:
      http://studem15a-20.blogspot.com/

      Comment

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