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Old 09-20-2009, 08:31 PM   #1
kenm78
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Speedometer??

On my 80 C10 TH350 my speedometer bounces between 45-55 MPH back and forth back and forth. Before 45 and after 55 Seems good. I checked my drive gear, and my driven gear in the tail housing everything looks good. Is my speedometer going bad? Is there a fix to my problem besides replacing the speedometer? Let me know thanks all.


Ken
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Old 09-20-2009, 08:35 PM   #2
old Rusty C10
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Re: Speedometer??

prolly just a little lube will clear that up
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Old 09-20-2009, 09:05 PM   #3
kenm78
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Re: Speedometer??

Where do you suggest I lube it? Do I need to pull the speedometer out of the dash and lube inside. or do I try to lube the speedometer cable? Thanks.
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Old 09-20-2009, 11:18 PM   #4
willett
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Re: Speedometer??

i hear graphite works really well.

mine does the same thing out of the blue on occasion.

it makes violent bounces sometimes to the point that i almost crawl under the truck and disconnect the cable from the t-case, and then magically as quickly as it starts it stops. :S
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