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08-04-2017, 09:28 PM
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#1 |
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Registered User
Join Date: Aug 2017
Location: Ashford, Wa
Posts: 2
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54 Chev SM 420 Swap
I have a stock 54 chev 3100 truck with an SM 420 trans serial number 591465 which puts it in the 47-53 range. See pic in truck. I bought an SM420 serial number 3830574 which puts it in the 64-67 range. It has a 10spline output. see pics. I want to know if i can convert the newer one to fit up with the torque tube u-joints on the old trans or do I need one of the correct vintage. It appears its doable. Any help would be appreciated.
RainierMan |
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