changing gears work??

[BlueSilvy00]

I'm gonna buy a 2003 6.0 or 5.3, lift it and put 37's on it.  I want to know which engine to go with and i'm gonna change the gears but do i really get stock power and mileage back when i chage gears?? what else cna i do to get more power an mileage back.. change cams??

[DejaVu]

I have a Z-71 that I lifted 6" and put 35's.  Right now I have stock 4:10's and it really isnt that bad.  If you go over 35" and you are...You will have to get 4:56 to get some of that power back.  Really these trucks eat gas on there own stock but it is hard to get gas mileage back going that high, Especially with 4:56 your engine will be revving up higher because of the lower gears.  Thus, that is how you get your power back.  More RPM's = more power = more gas.    

 

JMO

[chvythndr]

<font color='#000000'>I have a Z-71 that I lifted 6" and put 35's. Right now I have stock 4:10's and it really isnt that bad. If you go over 35" and you are...You will have to get 4:56 to get some of that power back. Really these trucks eat gas on there own stock but it is hard to get gas mileage back going that high, Especially with 4:56 your engine will be revving up higher because of the lower gears. Thus, that is how you get your power back. More RPM's = more power = more gas.

 

JMO</font>

w/ 37s, I would go w/ 4.56s. You will see a definite increase in power and get up and go. I can't wait until I regear. Driving around w/ 36x14.50s and 3.73s sucks. Once you get going, you don't notice it, but getting going blows, especially when towing.