Quote:
Originally Posted by Pech33
I am contemplating a chassis switch due to rust issues in critical places on the frame on my 40 convertible. In looking at the issues, the speedometer gear is in the enclosed driveline. Is there an adapter for the speedo if I want to keep the original 40 three speed mated to an open driveline to a Ford 9" differential. If not, how do you get the speedo to work?
Any thoughts?
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It's all going to depend on what type of transmission you intend to run. If you are going to stay with a flathead and three-speed trans, there is an open drive version that was used in '42 and subsequent pick-up trucks, which has provision for the speedo cable at the rear of trans. Otherwise, if you end-up using a T5, or a Muncie, or any of the Tremec 5-speed overdrive transmissions, most have the mechanical speedo drive which most times, hooks right-up to the old Ford speedo cable.
You're going to have more trouble getting the registration paperwork sorted out, because with a new chassis, you will lose the factory-stamped serial number on the left frame rail. There are ways to 'fake' it, but the State motor vehicle folks are smart now-a-days. And if you ever have an insurance claim, THEY'll find-out and refuse to pay. DD