CASTAIC 4RUNNER

if you have a 4x4 NO e-locker you probably dont have 4.10's you have 3.90's...ADH8796, you told me you have 3.90's did you regear to 4.10s

nc994run

I had a 4.30 non-e-locked ... that is until i swapped in a 4.30 e-locker 3rd

BajaRunner

Big difference for me from 265 to 285. Another good difference between alloys to steelies. No difference in acceleration from 285 steelies to 315 steelies. Only change I noticed was braking distance and decreased gas mileage and a smaller penis.

dropzone

iTrader: (6)

that is so true...

sportlocked

run em, make sure they fit, trim where needed and regear with precision gears since thats what I have.

4rx

exactly, it still get me from point A to B.

wow i didnt know theres so many of 3rd gen 4Runner on 315s. im still new to yotatech!

MillerPKA

yeah i'm surprised, a few of you are coming out of the woodwork to post up...i like it

Nate08

Climbed under tonight. Had a friend watch my tire. Jacked up one side and started. Rotated the driveshaft 41 to the tire 20. I guess my door panel is right, 4.10's. So...I supposed I'm clear to run 285's.

ninjarunner

Do it. I counted mine and the door panel was wrong. I got 4.10's and love the 315's... so 285 is no problem.

Nate08

Sweet. When I do upgrade to 4.56's in the rear, should I also upgrade to 4.56's up front?

MillerPKA

yes no reason in keeping your rig out of synch

Nate08

What would happen if I had 4.56's in the back, 4.10's up front, and put it in 4WD? Anything tear apart?

Greg_Canada

unless you were in deep snow you'd def f- something up.
you can be off a % or 2, but not that much.
(ex 5.13's and 5.29's are ok)

AxleIke

Do you have a center differential?

If not, you will do one or more of the following.

1. Completely strip the gearing in your transfer case- WAY more expensive than a front re-gear.
2. Completely strip either the front or rear diff gears- Same cost as a regear.
3. Snap ujoints, axles, etc.- possibly cheaper than regear, unless you are completely stranded out somewhere, and have to get a tow.

I understand the need to do things on a budget. I'm sorry, but you simply CANNOT run different gear ratios. Suck it up and get both done, or leave both alone.

Nate08

Just asking.

Rock Slide

iTrader: (1)

Yes, x1000 with what others have said...be sure to match both ft and rear w/ the same ratio.

sportlocked

if you cant get the front done, just dont even bother putting it in 4wd.

Neliconcept did that, except he bought an already setup 4.56 front diff and had to get the rear done, he just opted for a 4.56 arb from inchworm.

even though i do not like 4wparts, they do setup gears. but id look for a more professional shop around town that would be more reliable and has a better knowledge of r&p setups