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,...
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My 4x4 burb has the same gearing ratio with a 5.3. When not towing it runs super strong. Will burn the tires. But, towing isn't real impressive. I'm never going to change gear ratios. I'll live with it till I can buy a dedicated tow vehicle and keep driving this burb to work every day. That's going to be a couple of years away. The good news is that the 5.3 doesn't mind RPMs as much as I do. I do a drain and fill of my transmission at every oil change to keep the Dex6 nice and red. I changed the filter a few months ago. Nevertheless, the burb is adequate for towing. It really depends on what your standards are. Years ago I towed TT's with vehicles that didn't do as good as the burb.
