Bob,
Be careful. The HydraMatic starter is different from the manual transmission starter. One difference (I think) is that it has an electronic solenoid (not a foot starter). Moreover, I am not sure if the drive teeth are different (this could be a problem when trying to match up with a 12v starter). My trucks/engines/tansmission are in "hibernation" and I am not sure that I can easily get a look at my '54 Hydramatic parts.
Are all your grounding straps in place and are they the appropriate size for 6v?
Tim
