Speedometer driven gear problem

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Apr 5, 2008 | 02:12 PM

Grizzly Adams

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Joined: Feb 2008

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Speedometer driven gear problem

Hi;
The speedometer on my 97 F-150 4x4 quit, so I replaced the sending unit and the driven gear, which was badly mutilated. The replacement worked well for a short period and then failed again. On removal, I found the gear chewed up again. When I stick my finger in the mounting hole and wiggle the drive shaft, the speedo drive gear seems to want to turn with it. No sense replacing the driven gear until I know what the problem is. Any suggestions appreciated.
thanks

Apr 5, 2008 | 04:12 PM

LxMan1

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Joined: Dec 2001

Posts: 22,436

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From: Louisville,Ky.

Did you get the correct replacement? They come with the teeth angled both ways.
On the Mustangs, the auto and 5-speed were different and angled the opposite way.

Apr 5, 2008 | 06:03 PM