Speedometer problems for a 1967 F250

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TexanTwins
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Speedometer problems for a 1967 F250

Post by TexanTwins »

Hey everyone,

So my speedometer has been goin crazy for so long i finally cant deal with it anymore. Ive replaced the housing and wire, but not the gear yet. It seems under ten it bounces a lot, i hit a bump in the road it goes haywire, and when im at or close to 70 mph it just drops to zero and stays there unless i let off the gas and ease back onto it. Any troubleshoot or ideas would be greatly appreciated!

Cheers,

The Twins
There ain't nothin better on the road than a FORD
Rides:
1967 Ford F250 Ranger Camper Special
1972 Ford F100 Explorer
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basketcase0302
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Re: Speedometer problems for a 1967 F250

Post by basketcase0302 »

The plastic gear on the tranny end comes out easily for an inspection and NPD has them as well as DC. You can also put a drill on the cable end down by the tranny and have someone spin it while you watch the speedo to rule out the cable and speedo possibly being the issue. Maybe Donnie / Bobby or Ultra ranger can help a little more troubleshooting-repair? :pray:
Jeff
http://www.fordification.com/forum/view ... 22&t=46251
SOLD-71 F-350 dually flatbed, 302 / .030 over V-8 with a "baby"C-6, B & M truckshifter, Dana70/4.11 ratio, intermittent wipers, tilt steering, full LED lighting on the flat bed, and no stereo yet (this way I can hear the rattles to diagnose)! SOLD!
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TexanTwins
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Re: Speedometer problems for a 1967 F250

Post by TexanTwins »

How do I pull the gear out to inspect it? Thanks for the reply
There ain't nothin better on the road than a FORD
Rides:
1967 Ford F250 Ranger Camper Special
1972 Ford F100 Explorer
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sargentrs
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Re: Speedometer problems for a 1967 F250

Post by sargentrs »

Most just slide.into a hole in the granny case and have an o-ring seal. They are usually held in place by a ring/forked bracket and one bolt. Remove the bolt and it should wiggle right out. My gear was held onto the cable by a C-clip.
Randy
1970 F100 Sport Custom Limited LWB, 302cid, 3 on the tree. NO A/C, NO P/S, NO P/B. Currently in 1000 pcs while rebuilding. Project thread: http://www.fordification.com/forum/view ... 22&t=59995 Plan: 351w, C4, LSD, pwr front disc, p/s, a/c, bucket seats, new interior and paint.
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