Overdrive I. D.
 

Does anybody have any information on this overdrive. It is in a 1929 Roadster Pickup that was built by a man in PA. The builder died a couple of years ago and a friend bought the truck. We know he bought many of his parts from Dave Renninger in Bird-In-Hand, PA

Re: Overdrive I. D.
 

If there is number on the one part that the drive shaft bell fits into and if it's a Patent number try doing a search here;
https://google.com/advanced_patent_search
Looks like a sun and planet gear unit similar to the Model T Ruckstell.

Re: Overdrive I. D.
 

I've never seen one like that, but I sure like it and would like to have one for my car.

Re: Overdrive I. D.
 

Looks like a Nice compact unit.

Re: Overdrive I. D.
 

I posted a picture of one of those a while back. It was taken from the bottom and extremely greasy. Am still trying to get the owner to take out the floorboards and do a lot of cleaning but now I don't have too. Hope someone comes up with the answer.

Is it possibly a free wheeling unit?

Re: Overdrive I. D.
 

Thought I would resurrect this because no one came up with an answer originally. Does anyone have an idea what the heck this is?

Re: Overdrive I. D.
 

My guess is that is the Jumbo Giant transmission for the Model A that was made in Rockford, IL as an accessory. There is a member of the Rock-Ford A's that has one on his car.

http://modelt.org/discus/messages/2/...tml?1361438420