death of speedometer!

Joined
Apr 23, 2005
Messages
21
Location
marietta, GA
for some reason the other day the speedometer and odometer stopped workin on my 79 40. Do i need a new unit or what?

thanks,
mitch
 
Joined
Apr 24, 2003
Messages
2,212
check the speedo gear. it's plastic and can melt. if this happened, i'd be inclined to say your T case may be on the way out (i'm 3 from 3 when this happened)

does your t case make any noise?
 

Romer

fatherofdaughterofromer
Moderator
 
 
Joined
Sep 14, 2003
Messages
10,915
Location
Centennial, Colorado
Sometimes the routing of the cable gets "moved" over the years, PO's and rework down below. If the cable was too close to the exhaust, it can melt through the cable over time. Mine was starting to do this and we moved it. My problem (why we looked) was it was bouncing (+/-5MPH) until it climbed over 30 MPH and then its steady. Did you have any indications like this before it failed?
 
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