Re gear with larger tires - Page 2

Feb 24, 2008 | 11:56 AM

Share

#11

padodgeram

Record Breaker

Joined: Jul 2006

Posts: 2,440

Likes: 1

From: PA

RE: Re gear with larger tires

Quote:

ORIGINAL: Silver_Dodge

Quote:

ORIGINAL: zique

Quote:

ORIGINAL: Ridesnowboarda15
I wish I would have got 4:88 but then again I care more about power than MPGs but its up to you

4.88's is going to give you more low end (the power I assume you are talking about) actually...4.56's yields lower rpm's at any speed. The lower you go beyond a certain point, the higher your revs. If you are now spending the majority of your time above the "sweet spot" you are drastically affecting your mpg's. If you want better mpgs, go 4.10's.

Do not do 4.10's with 35's, it is not good for your gas mileage. 4.10 with 35 is too low, you can't even run in the low rpm's (overdrive) without it constatnly kicking you out of OD. This uses far more fuel. For good mpg, you need a gear that will allow you to run in OD comfortably without constant downshifting. Go with 4.56. I'm still leaning toward 4.88, but i'm not yet decided.

Here is an issue i have with running 4.88 gears , If you do some driving like 4-5 hrs worth and even towing on some long distance drive is the HEAT that the 4.88 will put out , I talk to some local 4x4 places and a few had issues with running 4.88 , 4.88 is nice for offroad or even driven around local or short distance , this is why i shy away from 4.88 , plus the rpm difference is like 300 and even when the truck is in OD with a 4.56 gear will be around 1600 rpm which is not bad at all , TQ , mpg .. BE A HAPPY MEDIUM ..MHO....

Reply

0