Classic/Antique Car Repair/spedometer cable

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Expert: - 3/24/2009


Question

spedometer cable
I recently bought a 1971 ford f-100.  The spedometer and odometer are not functioning.  When I check underneath, it looks like a cable has been cut.  There is a 6-inch cable screwed into the transmission, going nowhere.  I'm told that the truck was a converted from a 3-speed on the column to an automatic.  Is there anything I need to consider before attempting to install a spedometer/odometer cable?

Answer
It should be a straight forward replacement. Be aware that the gear at the transmission end of the cable can be purchased from Ford with different numbers of teeth. This will key the speedometer reading with the rear end ration. Check the speedometer for accuracy and change the gear as needed.
Brad

Brad Sears

Expertise

All automotive including antique and collectible. However if the car has been modified I can only answer in general terms and maybe get you pointed in the right direction.

Experience

Automotive tech instructor. Syndicated auto columnist 1970's though the early 1990's. Syndicated auto radio talk show, Ask Brad About cars, CBS Radio 70's through 90's TV Show "Last Chance Garage" 1980's PBS-TV syndicated. Auto instructor for the following companies: Fram Autolyte Holly Carter AMF Ford Motor University Of Conn Blue Hills Technical School Sugar River Technical Center Grew up in a family garage in Needham Mass and turned wrenches from the age of 14.

Publications
Manchester Union Leader, Nashua Telegraph, Motor Service Magazine, Yankee Magazine, Popular Mechanics (Saturday Mechanic early 80's), Los Angeles Times, New York Times, and lots more.

Education/Credentials
More than I care to remember. Basically Franklin Technical Institute in Boston, Northeastern University, Fitchburg State Teachers College, Tufts University, and a lot of factory schools along the way.

Awards and Honors
Moto Award winner. And much more.

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