2012 5.3L Yukon XL
The Mrs. and I are looking at stepping into the TT realm with our two little ones. We've got a new Yukon XL with the 5.3L package. I'm unsure about the ratio, so i'll have to check the sticker at ho...
Forum Discussion
If you are going to the expense of changing rear gears, 3.42 is NOT the place to stop. Go to 3.73 and you will be MUCH happier....Yes, a change in gears will help.
