gearing question

Jody · 10-26-2009, 08:40 PM

Did a 3.4 swap in my 94 this spring, and am looking to throw in some lower gearing. Stock is 4.56, I run 33x13.50s so the big question is, 4.88s or 5.29s??? Wondering what some of you who have done the swap are running, and how it's working out.
Thanks...

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jpmountainboy · 10-28-2009, 10:46 PM

I recommend not 5.29 for 33's.

i got 5.29s for my 35s and it runs rpms just a tad high on the freeway. but I got these gears so i could run 37's later.

make sure that you actually have 4.56, some stock have 4.88's. if you do a google search youll find a way to tell what gears you have by your vin sticker...if you already havn't.

whokrz · 10-29-2009, 12:22 AM

My old 97 4runner had 31s and 3.something gears, the torque was great.
The 3.4 should have good power. I would think that with a lighter vehicle, 4.56 gears and 33s the torque would be good.

Jody · 10-29-2009, 11:02 AM

Hey JP, did you get your 3.4 running yet?

**Tofer** · 10-29-2009, 11:25 AM

I have 529s and 35s with a 3.4 and it works great

JonnyBoy · 11-07-2009, 10:35 PM

The engine is tuned to make power along the same torque curve as the 3.0. If the gearing is right for the 3.0, assuming that's what you had originally, then the gearing is right for the 3.4.

I went to 33x10.5's and had confirmed 4.56's, even though the vin said 4.10's. I'm not the original owner by a long shot, and when I bought the rig it had 31's on it already. Anyway, I'm in a spot where I want to gear to 4.88, because I've noticed loss of mileage and get up and go with the 33's. It's not quite as sluggish as the 3.0 was with the 31's, it still keeps speed on hills a lil better.

BIG RON · 11-08-2009, 12:41 AM

Quote:

Originally Posted by jpmountainboy

I recommend not 5.29 for 33's.

i got 5.29s for my 35s and it runs rpms just a tad high on the freeway. but I got these gears so i could run 37's later.

make sure that you actually have 4.56, some stock have 4.88's. if you do a google search youll find a way to tell what gears you have by your vin sticker...if you already havn't.

I'm running 37's and 4.88's on my 87 4runner with a 3.4, purrs like a kitten and grate power all around.

Jody · 11-08-2009, 07:08 PM

Thanks fellas, I found a auto 4runner with 4.88s at the local wrecker, He'll sell me the diffs for $200 each. After doing some calculations, the 4.88s with 33s should gear me just a tad below the stock 4.56 with 31s.

10-28-2009, 10:46 PM	#2 (permalink)
jpmountainboy Registered User Join Date: Nov 2008 Location: CHICO, CA Posts: 304	I recommend not 5.29 for 33's. i got 5.29s for my 35s and it runs rpms just a tad high on the freeway. but I got these gears so i could run 37's later. make sure that you actually have 4.56, some stock have 4.88's. if you do a google search youll find a way to tell what gears you have by your vin sticker...if you already havn't. __________________ 94 pickup trail rig/3.0, & 96 tacoma stock.

10-29-2009, 12:22 AM	#3 (permalink)
whokrz Registered User Join Date: Apr 2009 Location: Suisun City, California Posts: 351	My old 97 4runner had 31s and 3.something gears, the torque was great. The 3.4 should have good power. I would think that with a lighter vehicle, 4.56 gears and 33s the torque would be good. __________________ 1990 4runner, 22re, R151, 4.7, 5.29s, E-locker front, Lock-Rite rear, 37" MTRs, 51" rears all around Trail Reviews http://www.gentryoffroad.com Toyota Factory Service Manuals http://ncttora.com/fsm/index.html

10-29-2009, 11:02 AM	#4 (permalink)
Jody Registered User Join Date: Apr 2009 Posts: 24	Hey JP, did you get your 3.4 running yet? __________________ 94 p/u 3.4 swapped, 4"marlin crawler rear springs tough country up front soon to be replaced with total chaos gen 2 caddy kit.

10-29-2009, 11:25 AM	#5 (permalink)
Tofer Super Moderator Staff Join Date: Jul 2004 Location: Tacoma WA. Posts: 6,909	I have 529s and 35s with a 3.4 and it works great __________________ 94 4runenr: all the good stuff....... 89 4runner: 3.0, Auto, 5.29 lockright f/r. 31x10.5 wildcountry ATs. 81 2wd pickup: 22R \| 5-sp \| long bed \|Civic SI seats \| LockRight \| Hella 500s pacific-crawlers.com For all your Trail-gear and HID lighting Solutions Needs check out yotaworks.com Online store coming soon :)

11-07-2009, 10:35 PM	#6 (permalink)
JonnyBoy Registered User Join Date: Apr 2007 Location: Lone Pine, CA Posts: 409	The engine is tuned to make power along the same torque curve as the 3.0. If the gearing is right for the 3.0, assuming that's what you had originally, then the gearing is right for the 3.4. I went to 33x10.5's and had confirmed 4.56's, even though the vin said 4.10's. I'm not the original owner by a long shot, and when I bought the rig it had 31's on it already. Anyway, I'm in a spot where I want to gear to 4.88, because I've noticed loss of mileage and get up and go with the 33's. It's not quite as sluggish as the 3.0 was with the 31's, it still keeps speed on hills a lil better. __________________ Jonny 1990 3.4 5spd 4Runner, 33" BFG KM2's 1983 5spd Shortbed, 35" BFG M/T's with no lift! Soon to be...who knows, but the 35's ain't stayin! "If at first you don't succeed, skydiving's not for you." -Unknown

11-08-2009, 07:08 PM	#8 (permalink)
Jody Registered User Join Date: Apr 2009 Posts: 24	Thanks fellas, I found a auto 4runner with 4.88s at the local wrecker, He'll sell me the diffs for $200 each. After doing some calculations, the 4.88s with 33s should gear me just a tad below the stock 4.56 with 31s. __________________ 94 p/u 3.4 swapped, 4"marlin crawler rear springs tough country up front soon to be replaced with total chaos gen 2 caddy kit.

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