i would like to swap out some thirds to change out my 4.10s to 4.56s

what cam i pull them out of ?

i have a 85 4runner 22REC

5 speed 4x4.

mostly a D.D.

i run 31" tires

thansk for any help.

i have read a lot of posts and cant find a straight awnswer? or i am blind as a bat...

 

you already have the right gears for 31's. why you wanna change??

 

4:56 = 31's

4:10s are for factory 29's

4:88 for 33's

5:29 for 35's.

 

the 4.10s are for 31' tires ?
seems to me they are for a stock tire size 225-75-15

 

okay so yeah, xtreme is right. completely. but most people just use the 4.10s for 31's. they feel fine like that to me. gotta remember it is a small suv with a 4banger in it lol.
i think some of the second or third gen 4runners and trucks came with 4.56's, could be wrong though

 

yes the ones that came with the 31" tire option from the factory.

 

Likely find those in a '90s vintage pickup or 4Runner with 5-speed and the 31" factory tire option.

 

so i can take out 2 rear 3rds for a early 90s with 4.56s and drop them into my 85 4runner? 1 in the front and 1 in the back correct ?

 

Absolutley :-)

I have 4.88 from a '94 pickup, and a '95 pickup in my '85 4Runner.

Front or rear axle on your '85 doesn't matter

 

whoah, so you are saying that a 94 pickup came with stock 4.88s?

 

You would need two rear 8inch thirds to regear your 85

 

dose it matter if it is a 4cyl or 6?

abs or no abs ?

 

4 or 6 don't matter
(V6 is same bolt pattern, spline count and location. Stronger that a 4 cyl with 4 pinion spider gears, instead of 2, and extra gussets built in to it's carrier housing)

If it has ABS, (like my diffs did), don't matter. Cut the cable, leave the plug on top of the diff.

Straight bolt in gear upgrade.

 

Only the V6 trucks with stock 31" tires and auto trans.

Please Note***
The Toyota factory 4.88 diff has an offset pinion gear. Still bolt in by all means, but the ring gear is thinner. Because of this, it will always be a 4.88 You cannot add aftermarket 5.29's later, for example.

 

One other thing, I have the so called "weak, thin ring gear" factory 4.88 diffs in my 85 4Runner. LSD in the rear, LockRite in the front. 35" tires, tons of wheeling with 4.7's, never an issue.

 

Ive run everything from 29" tires to 37" tires on my 4.56 V6 3rds and just have to change your driving style to accomidate I got mine out of 2 early 90s V6 4runners that had door code G254 4.88s have gear code G144 and 4.10s have G294 4cyl codes are the same but have a 2 at the end rather than a 4 2=2pinion 4=4pinion

just to clearify
4.10 = G294
4.56 = G254
4.88 = G144

 

So I can put 2 3rds out of 95 4runners with 4.88s and they will bolt right in? minus of course taking out all the axles and other stuff correct ?

 

Assuming 2 '95 rear diffs, then yes.

 

do they both have to by 1995 diffs? and yes both would be rears.

 

No. Just the same ratio. Also check 1994 V6 pickup with auto trans, and 31" tires. Those are also 4.88, just check to be sure.

Gearcode G144