Originally Posted by bullittben
There is also a gearbox on the back of the speedo that has to change speeds when the two-speed axle is shifted. Occasionally those may make the speedo read incorrectly. I'm not sure if you know exactly what is wrong, but look for issues with that. Engine could probably be a 261 inline 6, like mine, or possibly a V8. I don't have anything handy to decode your VIN.

A 261:

http://i185.photobucket.com/albums/.../BpHqBlwB2kKGrHqIH-DQEudNhio2SBLqBh6.jpg


My Chevy Viking 1959

Ulf Hedlund. Eskilstuna. Sweden
[email protected]
Also:
Ford Galaxie 4 dr 1959
Ford Custom 4 dr 1964
Ford Mustang GT 2005