Overdrive or not?
I finally purchased my first three quarter ton suburban with 8.1 motor. Until now I had a half ton with 350. I always towed in third gear because I understood that towing in overdrive was a no no. Now...
Forum Discussion
Section 4-51 of your manual says to tow in D unless it shifts too often while towing heavy loads or on hilly roads.
The next page states that the tow/haul mode reduces the frequency and improves the predictability of shifts. Best to use when the vehicle and trailer combined weight is 75% or more of the GCWR.
The next page states that the tow/haul mode reduces the frequency and improves the predictability of shifts. Best to use when the vehicle and trailer combined weight is 75% or more of the GCWR.
