Hi Guys I have a '95 Tahoe Sport Auto transmission. Every weekend, my Tahoe is in the desert. The problem that i am facing starts when i have to engage the first gear to drive up some steep dunes. When the tahoe reaches the top speed for the first geat, it shifts to the second one. According to me, when it reaches the top speed for the first gear, it should not move to the second one just like in a manual tranny. Your comments please.