Changing the gears in my suburban
I have decided to change the gears in my suburban (2008 5.3L 4sp auto), but not sure how much of a change to make. I currently have 3.73 gears, and was thinking 4.30 because 4.10 doesn't change much,...
Forum Discussion
3.73 is a good overall gear ratio. What you lack is power. Tow in a lower gear when necessary or get something with more power. Just my opinion for what it's worth.
