This weekend, I replaced the recently installed speedo cable with a longer OD
cable in hopes that it would quiet the god-awful noise from the dash to no
avail. Noise continued until the speedo dropped to 0 and stayed there. When I
was driving during the noisy phase, I could feel the vibrations on the face of
the speedo. The cable enters the firewall at the master cyclinders and
travels in the dash to the rear of the speedo and enters the speedo as close to
a straight entry as I can. No right angle drive on the speedo.
Any thoughts? Could the speedo be bad? I traded my other unit with a fellow
lister a few months ago and has never seemed to work properly. Could the right
angle drive on the transmission be bad? How would I know?
Thanks for the help - Gary Davis
PS - anyone have original heater control knobs for a 70?
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