When to downshift
Hi, I tow a approx. 6000lb trailer with a 03 Yukon xl 5.3, 3.73 gear. I took it for a drive today (middle NC) and it was in third, hit a small to medium hill (bump in the road to western people) at 2...
Forum Discussion
Search online and find the power curve for your engine. Once the RPM's drop out of the power band, downshift and bring the RPM's back into range. You won't be flooring it and you won't be the first one up the hill but your drivetrain will be happier in it's old age.
