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Re: 4l60 wont up shift till high rpm
Posted to Transmission Forum on 6/20/2005 2 Replies

Thanks Leo, yes debris might be a problem for sure, running it llow on oil didn't help anything in the trans. When the pan was pulled there was no noticable filings etc in it. Was serviced (by me)_ about 6 monts before because of a no od complaint and the oil ... Login to read more.

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