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Discussion Starter #1
So heres the thing, right now i got the 3.4l v6 5 speed with the shitty 3.92 gears and i'm running 31" tires, i want to move up to the 33" tires but i know i have to regear since the 31's suck with the 3.92 gears i am wondering if i should go with the 4.56 or the 4.88 gears for 33's with the v6, most of the threads i read apply only to the 4 cyl. taco's any help would be great. Thanks in advance.
Oh yah where would be the best place to buy the gears for quality and price.
Thanks again.
 

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What year is yer truck?? I have a 2000 3.4l v6 5spd and have 4.10 stock!! Gears are fine for right now but prolly go to 4.56 later down the line...:D
If this is a trail rig... then you'll wanna go with 4.88's if you do any type of hwy driving then 4.56's will suit you best! otherwise you'll be winding out with 4.88's on hwy!!

Im not sure exactly where to find the best gears... Im sure if you search around the board you'll find yer answer ;)

Good Luck!!
 

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Discussion Starter #3
sorry i forgot to include year its a 95.5 The old pig is still a D.D. for another couple of years i have very little troubble with her but she is wheeled every chance i get.
I was thinking the 4.56's also but i just wanted to get some opions befor i go out and lay down the coin for the new gear set.
 

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get the 4.88s..... the people that say you will be winding out with 4.88s are on crack.....

if 22rs can run 5.29s or 5.71s on the freeway in a DD, 4.88s aint squat to a 3.4l.....
 

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I would suggest 4.56 as well. That would bring you closer to stock. If you dd it, 4.88's will be a little high in the hwy (though do-able).
 

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Really depends on how much highway driving you do. My V-6 std cab 5-spd has 4.88's in it. 3000rpm @ 70mph with TRXUS M/T 33's and about 2850ish with 35 Procomps..If the truck is off roaded regularly 4.88 is the ticket, I wish for 5.29's some days on the trail. There's my :2cents:
 

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I have some 4.10s free if you want to try that... I ran that ration with 33's for a long time, even with 36 inch tires, but I have the auto.

If you are interested in the gears, PM me.
 

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truck ~n~ tow
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I say 4.56's... You'll get a little better fuel economy on the highway speeds... Around town or keeping it under 3K rpm on the highway... fuel economy is about the same with the 4.56's or 4.88's

Now if it's not going to be a daily driver much longer... Then I'd do the 4.88's... Which I have and like alot...

If you don't wheel regularly... go with the 4.56's

RPM Comparison @ 65 mph 5th gear, 33's
4.56 = 2548
4.88 = 2727

It's only a coulple hundred rpm difference...
 

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I have an auto, but I wish I had 4.88's. For me the 4.56 is okay, but the wheels and tires I have are heavy and the 4.88's would help some I think.

For you if your truck is street driven I would go with 4.56's and nothing lower.

I calculated this out when I was trying to decide on gears for my truck and 31" or 33" tires. I went with 33's but for me it still equals out to stock gearing.

From what I've found my automatic transmission is an A340F= 1st 2.804, 2nd 1.531, 3rd 1.000, 4th 0.705 Reverse: 2.393.
(VF2A transfer case with a 2.566:1 low range.)

Using a simple gear ratio calculator I've used for years I get (approximations):

225/75/15 (28.2" stock tires)50mph.....60mph.....70mph.....80mph
3.91:1..............................1633........19 66.......2300......2633
4.56:1..............................1900........23 00.......2666......3050
4.88:1..............................2050........24 50.......2866......3266
5.26:1..............................2200........26 50.......3100......3533

31" tires...........................50mph.....60mph... ..70mph.....80mph
3.91:1..............................1500........18 00.......2100......2400
4.56:1..............................1733........21 00.......2433......2800
4.88:1..............................1866........22 33.......2600......3000
5.26:1..............................2000........24 00.......2800......3200

33" tires...........................50mph.....60mph... ..70mph.....80mph
3.91:1..............................1400.......167 5.......1966.......2250
4.56:1..............................1633.......196 6.......2300.......2633
4.88:1..............................1750.......210 0.......2466.......2800
5.26:1..............................1900.......226 6.......2650.......3033


For the 3.4 with manual or five speed transmission this is what I found; 1st 3.83, 2nd 2.06, 3rd 1.44, 4th 1.0, 5th 0.84, Reverse 4.22.
22

225/75/15....................50mph.....60mph.....70mph.....80mph
3.91:1..............................1933........23 33.......2733......3133
4.56:1..............................2166........27 33.......3633......3633
4.88:1..............................2433........29 00.......3400......3900
5.26:1..............................2600........31 33.......3700......4200

31" tires...........................50mph.....60mph... ..70mph.....80mph
3.91:1..............................1766........21 33.......2500......2866
4.56:1..............................2066........25 00.......2900......3333
4.88:1..............................2233........26 66.......3100......3566
5.26:1..............................2400........28 66.......3333......3833

33" tires...........................50mph.....60mph... ..70mph.....80mph
3.91:1..............................1666.......200 0.......2333.......2666
4.56:1..............................1950.......233 3.......2733.......3133
4.88:1..............................2100.......250 0.......2933.......3366
5.26:1..............................2233.......270 0.......3133.......3600
 

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It isn't much typing when I just copy it from my notepad and paste it here. Besides a gear calculator does not display the results of running any of three popular size tires, four popular gear sets, and the resulting rpm at four different speeds all on one page. If that wasn't enough, the gear ratio of two different transmissions is listed as well.
 

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Discussion Starter #15
Thanks for all the replys guys, at first i was thinking 4.56 but now i think i'll get the 4.88's since there is not a big difference in rpm's at highway speeds and where i from there is a lot of hills and i use my rig for towing and hauling around my sled in the winter. Should be great to get some of the lost torque back.
 

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I got my gears and lockers from http://www.performanceoffroadcenter.com/ Randy's Ring and Pinion is also a good source. Yukon is a good manufacturer. Stay away from genuine gear.

Zuk on this board set up my gears... he's in Chandler AZ. Check out his website for LOTS of good info.

www.gearinstalls.com
 

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Animal said:
What year is yer truck?? I have a 2000 3.4l v6 5spd and have 4.10 stock!! Gears are fine for right now but prolly go to 4.56 later down the line...:D
If this is a trail rig... then you'll wanna go with 4.88's if you do any type of hwy driving then 4.56's will suit you best! otherwise you'll be winding out with 4.88's on hwy!!

Im not sure exactly where to find the best gears... Im sure if you search around the board you'll find yer answer ;)

Good Luck!!
im in the same spot right now, still got the 4.10's. they work ok but i need it alittle lower. and i drive 80 or more miles a day so i dont think i want the 4.88's. but id jump all over it if i didnt use it as a DD
 

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Rebuilt98 said:
Last I heard Zuk still isn't doing Tacoma IFS front ends. Crazy smart guy though.
You're probably right... I've got the older setup! :D 'Course now he's going all Tacoma on us... maybe won't be long.
 

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BLADE PILOT said:
So heres the thing, right now i got the 3.4l v6 5 speed with the shitty 3.92 gears and i'm running 31" tires, i want to move up to the 33" tires but i know i have to regear since the 31's suck with the 3.92 gears i am wondering if i should go with the 4.56 or the 4.88 gears for 33's with the v6, most of the threads i read apply only to the 4 cyl. taco's any help would be great. Thanks in advance.
Oh yah where would be the best place to buy the gears for quality and price.
Thanks again.
with the 3.4
4.56s/33s with a 5sp
4.88s/33s with the AT

4.56s/35s with 5sp/SC
4.88s/35s with 5sp
4/88s or 5.29s with AT
4.88s with AT SC

in your case, 4.56s will keep you close to stock and your speedo/odo will stay accurate. If you do a lot of hwy driving and minimum wheeling stick with 4.56s. if you do a lot of wheeling and haul/tow on a regular basis go with 4.88s

If you plan on installing a crawler stick with 4.56s
 
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