I finally got to use my 95 5.7 ltr,(4L80E trans) suburban C2500 for towing. I tow an enclosed trailer approx 8000 pounds. From New York to Savannah, Georgia. On the way down I put it in 3rd gear and left it there. Got terrible mileage 7 MPG or so. towing at 55 to 60 mph. On the way back I used drive(the trailer was 4000 pounds lighter). Got almost 11 MPG towing at 65 mph. The tranny didn't downshift till it went below 50 mph or so.
It seems to me I'm not doing any harm to the tranny as long as it does'nt start shifting up and down.
Am I right?
It seems to me I'm not doing any harm to the tranny as long as it does'nt start shifting up and down.
Am I right?