[Woody]

Hi Guys & Gals
I don't know where to go( be gentle please)
My 96 Savana 2500, 4.3 4 speed auto has a Trany problem I can't solve( or the dealer or 2 trany shops)
Any one know where I can get an answewr to a trany problem. the truck shifts perfect until I run up to highway speed. Then it shifts very harsh from a stop ie. 1 to 2 and 2nd to 3rd. If I stop the truck and shut it off and restart it works fine again until I hit the highway. Its my work truck and I'd rather play with my Porsche.