| Listed in parts books | Not catalogued by year yet |
MAIN SHAFT 3RD GEAR 47-51
Main shaft third gear for the gearbox, catalog listed for 1947-51.
This is a main shaft third gear, part number 57-0443, listed in the parts books as fitting the 1947-51 span. It's a gearbox internal, one of the gear pinions that rides on the mainshaft inside the transmission and gets selected when you're in third gear.
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We don't have a lot of extra detail on this one beyond the catalog line itself. If you're rebuilding a gearbox from this era, it's worth confirming the tooth count and shaft fit against what's actually in your case before you order, since gearbox internals from these years can vary and aren't always a straight swap across model years.
Call the shop if you want us to check this against your gearbox before it ships.
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