The Ford Barn

anothercarguy · 04-11-2016, 11:27 AM

Hi all, Long time lurker...not much of a poster...have taken advantage of the expertise on this board many times...thank you all for the past and in advance for sharing your knowledge. Couldn't find the answer to my question using the search function this time.

I have a zero mile car with a fresh '39 trans c/w an open driveline conversion from a '42-48 truck in a project that I have taken over. The trans is filled to the appropriate level with gear lube. I recently pulled the speedo gear out to have a speedo cable made up. When I pulled the gear out, it was dry (no lube, no grease). Does it get lube from the trans once running? Does it need to be pre-oiled/greased? or was there a step missed when the trans was converted to the open driveline that allows the lube into the tail shaft area?

Juergen · 04-12-2016, 08:24 AM

The open drive trans does not have a slinger in the back to sort of keep the oil in the trans case. Instead it has an oil seal on the output shaft behind the speedo gear. So some trans gear lube will get in there to lubricate the speedo parts. If you are concerned, drop some oil in there to prelube the gear.

anothercarguy · 04-12-2016, 01:10 PM

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Thank you...will do.

04-11-2016, 11:27 AM	#1
anothercarguy Member Join Date: Jan 2013 Location: Bowen island, BC Posts: 74	'39 Trans w/'42-48 truck open driveline conversion speedo gear question Hi all, Long time lurker...not much of a poster...have taken advantage of the expertise on this board many times...thank you all for the past and in advance for sharing your knowledge. Couldn't find the answer to my question using the search function this time. I have a zero mile car with a fresh '39 trans c/w an open driveline conversion from a '42-48 truck in a project that I have taken over. The trans is filled to the appropriate level with gear lube. I recently pulled the speedo gear out to have a speedo cable made up. When I pulled the gear out, it was dry (no lube, no grease). Does it get lube from the trans once running? Does it need to be pre-oiled/greased? or was there a step missed when the trans was converted to the open driveline that allows the lube into the tail shaft area?

04-12-2016, 08:24 AM	#2
Juergen Senior Member Join Date: May 2010 Posts: 503	Re: '39 Trans w/'42-48 truck open driveline conversion speedo gear question The open drive trans does not have a slinger in the back to sort of keep the oil in the trans case. Instead it has an oil seal on the output shaft behind the speedo gear. So some trans gear lube will get in there to lubricate the speedo parts. If you are concerned, drop some oil in there to prelube the gear.

04-12-2016, 01:10 PM	#3
anothercarguy Member Join Date: Jan 2013 Location: Bowen island, BC Posts: 74	Re: '39 Trans w/'42-48 truck open driveline conversion speedo gear question Sponsored Links (Register now to hide all advertisements) Thank you...will do.