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th700

  1. Th700/4L60

    Transmission & Driveline
    I have a th700 year 1990 in my Impala -68 and im about to wire it for the Lockup, I have a question about the pressure switch, I've seen alots of sites about it and people change the original switch to an (Normally open/pressure closed switch) whats the problem with the original one, how can...
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