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Re: 4L80E No Reverse
Posted to Transmission Forum on 10/5/2011 6 Replies

Mr. Bertelson, With all due respect, I would HIGHLY suggest you NOT perform a couple of "UPDATES". Some have you drill a 0.055" hole in the pump cover from line to lube or converter. Others have you enlarge the pump pressure regulator balance cup plug orifice... Login to read more.

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