Yes hello, I am new here and looking for a good answer. I have 1998 Chevy k1500 5.7 v8 with a 4l60e transmission. When I drive truck on highway 55 and over and then get off of highway on ramp and sit at the light. When I accelerate trans will have hard shift in 1st and hard shift going to 2nd 3 and 4 are good. I think trans is still thinking its going that speed so it shifts fast maybe idk. But I can shut truck off and trans will shift all gears fine until I go on highway and get off again. Any answers would be great thank you