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
LOT of naysayers when I was contemplating 3.55 to 4.10 ratio. Most said to save the money and buy a bigger truck. All has been good for 12 years running the 4.10s.
There have been a few times 4.30 or 4.56 would have been better but not many really.
To help know what you need you will need to give more information. What speed to you cruise and what RPM? I assume it downshifts a lot over minor rise in the road? What RPM is cruising speed in the next lower gear?
Gears do not improve horsepower so much as they help keep the engine closer to the preferred RPM to make the power they can.
Yes if you are changing gears go at least 4.30 ratio. Is that even available on a Chevy?
There have been a few times 4.30 or 4.56 would have been better but not many really.
To help know what you need you will need to give more information. What speed to you cruise and what RPM? I assume it downshifts a lot over minor rise in the road? What RPM is cruising speed in the next lower gear?
Gears do not improve horsepower so much as they help keep the engine closer to the preferred RPM to make the power they can.
Yes if you are changing gears go at least 4.30 ratio. Is that even available on a Chevy?
