I have a 96' with a AW4. I was pulling a very heavy trailer a couple miles from dads to my house. I had the transmission in 1-2 to keep it from shifting up and was keeping the speed way down. The transmission will shift fine in drive and 3 but in 1-2 it will stay in first. I did some trail riding this weekend and it was nice in 4lo and first to creep down the hill. (had to use the gas to go down a steep hill) Is this something I should worry about and what do you think it could be. I was fine for the first mile. I stopped at an intersection and then it was stuck in first. now it is always stuck in first when in 1-2. cheers