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    Results 1 to 3 of 3
    1. #1
      Join Date
      Feb 2009
      Location
      Long island, New York
      Posts
      668

      speedometer calibrating

      i wasn't sure where to post this, but i was wondering how you calibrate a speedometer on a 69 camaro. i have a th350 if that helps. the speedometer says that im doing like 90 when im actually doing about 50-55mph. thanks-Dom

      Dom Buffa
      69 Camaro- 2JZ /Garrett 67MM, Ls1 13" Front disc conversion, 18" ROH 3 piece Modenas




    2. #2
      Join Date
      Nov 2008
      Location
      Long Beach CA
      Posts
      64
      Go here

      http://700r4.com/speedoCalc/speedocalc.shtml

      this is real easy! I believe the gears are the same for the 700r4 as the TH350...good luck!

    3. #3
      Join Date
      Aug 2004
      Location
      Jacksonville, FL
      Posts
      1,665
      Country Flag: United States
      Here is another website http://www.tciauto.com/Products/Tech...eedo_gears.asp You can find out the parts numbers for the correct ones when you have to change them. I always found them cheaper at the chevy dealer than through some of the online retailers. If you have to change the drive gear (always get them mixed up name wise- the one on the trans tail shaft), Pretty easy to do:
      1. Jack the car up
      2. remove driveshaft
      3. remove 4 bolts holding tailshaft to tranny (have a small drip pan when you remove it). Not alot of fluid but some will come out.
      4. remove and replace that particular gear and reverse steps.
      Be sure to get another "square o-ring" for the tailshaft housing from the dealership while you are there.

      The other one (the one behind the speedo cable) is easy to get to. Remove speedo cable and the bolt and retainer. Most of the time, I feel it is easier to remove the tailshaft and see what you have and start from scratch. That way you are not doing this a couple of times trying to get your speedo working right. They are different colors but depending on how long they have been in trans fluid you might not be able to tell the right color. Hope this helps.
      Chris
      1968 Chevy Camaro SS
      LT4 (coming)/T56 DSE suspension

      1969 Oldsmobile Cutlass S convertible (442 Clone)
      LS3/4L70e, DSE suspension



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