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transmissions 101

  1. Transmission - Rearend
    Hello I'm a new-be to this site :welcome: and I joined cause I need some information on a transmission my late husband has left me. It is a powerglide aluminum transmission and it measures 28 +/- length and 18+/- width with a number 3987988 followed by a circle with a "CM" at top and a 4 at...
  2. Transmission - Rearend
    Do you have to drain the trans to replace the govenor on a 700R4 ? Do you need to replace any gaskets or "O" rings when you pull the cover?
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