4.88 vs 4.56 gears 2.7L

Ok guys i need help, im looking to regear my truck and i dont know weather to go with 4.56's or 4.88's. I have a 2.7 3rz-fe motor with few engine mods restoring power. i have 33inch tires, and anymore I am driving on the freeway but i go out wheeling as much as possible. which should i go with

 

4:56 if you want it close to stock, 4:88 if you want a little more torque.

 

manual or auto?

 

See ive heard both ways, 4.56 is a stronger gear with fewer teeth and thicker gears. with 4.88's i would be screeming out on the freeway losing mpg right?? its a stick

 

this.

factory gears for a 2.7 automatic are 4.56

if you are actually looking to regear get the 4.88s

 

The differences in strength are so small, it doesn't matter. If you're worried about it, get them cryoed.

What gears are you running now? If they are 4.30s like I had, they kinda suck for torque. Like PcBuilder said 4.56 is going to be close to stock, and not worth it IMO. I'd get 4.88s and have the power/torque when you want it and just go easy with the skinny pedal when you're trying to improve mpgs

 

Stock 2.7 3rz manual comes with 4.10 gears I believe... At least thats what i've read. that makes sense to go with the 4.88's but you dont think im going to be redlining driving at 75? this is the first time ive looked into gears so i dont know that much.

 

Depends on several factors IIRC. Check your door code. I have a 2.7L 3RZ manual and I had 4.30 gears stock. Pretty sure 4.10s are in V6s/TRD models.

 

What are you running in that truck now?

 

Tons of factors. Just gotta look up the door code.

Since your a stick. I'd go 4.88s. The 3rz will putt along at 3k rpm on the hwy no problem. And if you are getting into offroading it'll be very nice for that.

 

I'm running 5.29s but I also have 35"s

 

Going by my door sticker my 96 2.7 auto has 4.10s

 

Hmm, in my 96 2.7 auto they were 4:10's?

 

4.88

 

Another question for ya... should I go with 8 inch or 7.5 4.88s gears

 

7.5" is for the front diff. 8.4" is the rear. 8" is TRD e-locker rear.

 

You'll e need the 7.5 if your 4wd and if your open out back the 8.4 or if you have the locker the 8"

 

Now that I finally have the money to buy the gears I can only find 1 8.25 ring by midwest. I cant find any other maker on 4 wheel parts that make that size... not to mention they are reversed thread... why would reversed thread matter?

 

Revers thread is for the drive shaft going the other way.

And 8.25???

Only 8" or 8.4" diffs man..or 7.5 front diff which is reverse cut.

 

Go to Randy's Ring and Pinion (RingPinion.com) and you will find any of the gears you want for a good price. They are my supplier for gears.