Hard Shifting

By racing99
October 26, 2010 in Gen III & Gen IV V8 Engines (LS-Based)

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racing99

Posted October 26, 2010

I have a 1998 gmc 5.7 auto, always from a stop from 1st to 2nd gear it bangs hard but not from 2nd to 3rd or to 4th, doesnt matter if the truck runs for awhile or not, sometimes it shifts harder then others but it snaps the head back good at times, im scared one of these times somethings going to break, ive changed the tranny filter and had it flushed nothing appeard wrong in oil pan or oil..............any ideas

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