Posted by Bill Wincapaw on July 21, 2000 at 20:48:32:
In Reply to: As was explained to me... posted by Brian in Oregon on July 21, 2000 at 19:04:53:
Early PW's (1946-55) had NP Spur Gear trannys. NP 420's were in 1956 and later PW's these were Helical geared (& syncroed). The trannys have a casting date stamped on them I'm sure there is a mod # on them somewhere???
Best regards
Bill Wincapaw