speedo gear drive

Discussion in 'U-shift em' started by pglade, Apr 11, 2007.

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  1. GS-XNR

    GS-XNR Well-Known Member

    I am having a problem with my speedo on my 69 4 speed. I have the "L" shaped adaptor on the transmission to which the speedo cable attaches. I THINK my problem is that the adaptor is loose in the housing. The bolt holding the little metal piece that clamps the adaptor to the housing is tight. However, I can turn the adaptor freely when the bolt is tight. Is this normal? I'm thinking that because the adaptor is loose the speedo gear is not meshing correctly with the drive gear on the tail shaft. Any thoughts or suggestions???
    Thanks
    Harvey
     
    GS-XNR, Jun 21, 2007
    #21
  2. Steve Schiebel

    Steve Schiebel Well-Known Member

    Steve Schiebel, Jun 22, 2007
    #22
  3. Rich Johns

    Rich Johns Platinum Level Contributor

    Was this ever determined what was correct speedometer gears for 70 GS Stage 1 M21 4 speed muncie with 15" G60 polyglas?

    How many teeth and what part # for M21 output shaft speedometer gear and what color Purple or Brown for speedometer cable gear would be correct for this application?

    Thanks
     
    Rich Johns, Jan 15, 2011
    #23
  4. Rich Johns

    Rich Johns Platinum Level Contributor

    Yes 3.64 axle 70 GS Stage 1 as this thread originally started
     
    Rich Johns, Jan 16, 2011
    #24
  5. Rich Johns

    Rich Johns Platinum Level Contributor

    So this tan speed gear would be correct for M21 with 3.64 gear and G60-15 tire?
    What about Muncie output shaft gear how many teeth?
    Thanks
     
    Rich Johns, Jan 16, 2011
    #25
  6. Rich Johns

    Rich Johns Platinum Level Contributor

    Thanks DL
    Anyone know correct # of teeth on Muncie out put shaft ?

    Anyone have a 70 Stage 1 4 speed non AC 3.64 car with a pic showing speedo cable on back of Muncie?
    Hard to believe an adapter is required?
     
    Rich Johns, Jan 17, 2011
    #26
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