Hershel W Cecil
Newbie
I had a 92 1/2 ton that I towed a 18" enclosed trailer 2700# empty and the tranny lasted about 500 miles. still under warranty. I put a temp gage on it it would be at 250 and rising fast in a very short distance. no wonder it went out.. It had a trailer package but in 92 a 1/2 ton only had a cooler in the radiator. Put an aux cooler on it and never another problem. I also had a 4x4 1993 Dually with a 454 and HD trailer package and even it came WITHOUT a air to fluid cooler. Had to put one on it. too! By 1998 Mu 1/2 ton Tahoe with HD trailer package had a air to fluid cooler as well as an engine oil cooler. I guess GM never bothered to hot weather test any of their pickups with a trailer behind them before the mid 90's.