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    Ford 555b transmission help needed

    I have a similar problem. 1988 ford 555b doesn't move in forward or reverse, checked the output pressure at the dump valve and got 150 psi at high or low rpm. The manual states 90 psi at 800 rpm then 135 psi at 1600 rpm then 145-165 psi at 2100 rpm.My pressure seems a bit high but I may not have...
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