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Thread: Speedo jumps around. Think I need a new head. Any ideas on buying one new or used?

  1. #1
    Registered Member
    Join Date
    Jul 2017

    Member #:3468

    Speedo jumps around. Think I need a new head. Any ideas on buying one new or used?

    Looking to buy another speedo head on my 55 Belair. Any advice?

  2. #2
    Registered Member chevynut's Avatar
    Join Date
    Nov 2011

    Member #:115
    Fort Collins, CO
    It might just be the cable. I'd take the center out and clean and lube it and see if it goes away.
    56 Nomad, Ramjet 502, Viper 6-speed T56, C4 Corvette front and rear suspension

    You can see my 56 Nomad build here http://www.picturetrail.com/chevynut

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  3. #3
    Registered Member BamaNomad's Avatar
    Join Date
    Nov 2016

    Member #:3217
    Rocket City, USA (Huntsville, AL area)
    I second CN's post.... most generally this is due to dried/hard/missing lubricant in the cable. Try lubing the cable with 'suspended graphite'... and see if it addresses the issue before you replace the speedo head...

  4. #4
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    Apr 2016

    Member #:2974

  5. #5
    Registered Member
    Join Date
    May 2012

    Member #:625
    If you need a new cable ATP sells a new one for a 72 Chevy 1/2 ton 2wd TH350 that fits perfect about $15, available at most parts stores.

  6. #6
    Registered Member
    Join Date
    Nov 2015

    Member #:2764
    Don't overlook the speedometer itself. Right where the cable goes in gets dry/gummy and seizes up and will trash a good cable. You can oil it the easy way from the outside, or take it all apart and do it right. Don't break the speedometer needle!


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