I had a 98 chevy s10 ls not sure what trans was in it but it seemed to only has over drive even when it was is drive it would not shift into 2nd until around 3,000 rpm sometimes more but all other gears were fine i drove it like that for almost a year before brake booster went had i had to sell and i was told it was a shifting solinoid and the fluid was never changed and that could have had a small part to play this problem is very commen in s10s seems like everytime i see one for sale it has this problem im getting ready to buy another one and has same problem wont ahift into 3rd and doesnt have drive .