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Old February 5th, 2021, 03:31 AM
BillT BillT is offline
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Default Re: D478 manual transmission identification and options

Not sure if this would help, but my 478 Gas had a 5-Speed Clark.

I doubt a Toro-Flow would have an SM-420.

Also a Toro-Flow was a Gas Engine that was made to be a Diesel. Should be the same Block to accept a typical trans.
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Drove and owned many, but some of the more interesting ones were:

-'60 GMC 2500 Dump, 305 V-6
-'62 GMC 4000 Flatbed, 305 V-6
-'62 GMC 6500 Flatbed Dump, 478 V-6
-'67 GMC 7500 Box, 6V-53 Detroit
-'71 GMC 9500 Flatbed Dump, 637 V-8
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