Posted by Eric B. on Tuesday, May 08, 2007 at 23:02:09 :
In Reply to: Re: speedometer question posted by chrisnj on Tuesday, May 08, 2007 at 21:25:21 :
You have a speedo from a 1939 Dodge truck.
The 1939 only speedos have the threads inside the housing, unlike the 1940-47 speedos where the threads are on the outside.
I have pictures of the various 39-47 speedos somewhere, there were a number of subtle, and not so subtle changes over those years. They all mount in the dash the same though.
Most of the 46-50 PW speedos were the same, but I would not be surprised to find some small changes on those as well.
I hope this helps.
Eric
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