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  1. How T-400 works?

    Transmission - Rearend
    OK, I have been driving manuals for years and like how you can slow down by simply letting off gas, upshifting, because the gears are "locked" there until you tell it what to do. Today I seafoamed my motor and was running around high rpm and noticed with my TH400, first gear does this! It...
  2. Broken Poly Locks

    Engine
    I purchased a couple of Sprint cars this past weekend. I was checking them over and pulled the valve covers on one of them just to check things out. I removed the stud girdles and when I did, one poly lock on each side was broken. They both seemed to break right at the end of the rocker stud...
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