I hate my 3.55 for towing. If I tow in OD, I'm below 2000 rpm at 65mph. In drive, I'm turning, about 2400 at 65. I'd like to be at 2100 for towing. So I either stay out of OD and drive 55 mph, or In OD running about 70 mph. I miss my old 4.10's for towing. I think a nice gear would be the 3.743's