ronbo Posted February 11, 2006 Report Share Posted February 11, 2006 So... has anyone tried this: Granatelli Transmission Tuner for All GM 4T80E Do a web search for their part number 420106 About $120-$125 I don't know about y'all, but my 98 Aurora could stand to have this Link to comment Share on other sites More sharing options...
stsjoe Posted February 11, 2006 Report Share Posted February 11, 2006 So... has anyone tried this: Granatelli Transmission Tuner for All GM 4T80E Do a web search for their part number 420106 About $120-$125 I don't know about y'all, but my 98 Aurora could stand to have this Bonus checks come out next week, may give it a try Joe Link to comment Share on other sites More sharing options...
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