4.56 or 4.88 gears??

traxxi2003 · 11-30-2009, 11:03 PM

Hello there!

I need to regear my 1997 4Runner SR5 2WD Aut Trans, since I will be installing 33x12.5*15 tires. Right now with factory tires at 65mph the rpm's are at 1950, How much higher will they be with 4.88 gears? Is 4.88 too much? Or should I go with 4.56 instead? I will like to gain a little extra performnace without having my engine reving to much higher from factory setting. Any advice will be appreciated. Thanks!

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SpecialScottie · 12-01-2009, 12:01 AM

4cyl or V6?
If you have the 4cyl Id go with the 4.88s

91Toyota · 12-01-2009, 12:15 AM

definitely need to know what you have under the hood!

stormin94 · 12-01-2009, 12:33 AM

Quote:

Originally Posted by 91Toyota

definitely need to know what you have under the hood!

X2

traxxi2003 · 12-01-2009, 12:52 AM

Sorry! V6 3.4L

stormin94 · 12-01-2009, 01:31 AM

Then 4.56 should be adequate.

crolison · 12-01-2009, 08:12 AM

4.88's

***Go Overland!*** · 12-01-2009, 10:47 AM

On my '98 with 255/85/16 tires at 65 miles per hour with 4:88 gears I'm turning 2300 RPMs.

V6, auto.

Jacque

mt_goat · 12-01-2009, 10:52 AM

4.88s would be good with that setup, I'm geared even lower than that (5.29s).

Here's a good calculator:

http://www.ttora.com/forum/showthread.php?t=56784

brian2sun · 12-01-2009, 05:19 PM

I'm very glad that I did not go w/ 4.56s - would have been a lot of $$ for a marginal difference. 4.88s are the way to go w/ a 3.4 and 33s.

82blueyota · 12-01-2009, 05:32 PM

so i have a 82 1st gen with the 22r. would 4.88 be to much for 30" tires or would 4.56 do the job can you still do 70 with lower gears

camo31"10.50" · 12-01-2009, 05:37 PM

well if your gonna stick with the 30" tires..or never go bigger than a 31" tire..then yea 4.56's would be good..but if ya plan on goin any bigger..get the 4.88's

traxxi2003 · 12-01-2009, 09:47 PM

Thanks everyone for replying back. I'm definetly going with 4.88. Its only about 200-300 rpm increase from my current setup. Hopefully that will translate in a decent performance increase even after upgrading to 33's.

ESQ · 12-02-2009, 08:51 AM

4.88 for manual, 5.29 for automatic (because of the 5th gear and overdrive ratio differences).

82blueyota · 12-02-2009, 05:42 PM

I do 70 every day to work its my dd works great at that speed

ChildrenOfBodom · 02-07-2010, 10:02 PM

I have a 99 2.7 2WD with 265/70/17's.

I have 3.91's stock I am pretty sure so I was gonna swap to another 4Runner diff.

My problems really are that I have no low end power and when going uphill, I can barely get up most of the time. Uphill on the way to Mt. Baldy then actually climbing the mountain was awful. When the car is loaded, flooring it couldn't keep me up with the Sienna in front of me. I would love some acceleration for those "Lane Merges Ahead" types of deals, etc.

So what would one recommend? 4.56s, 4.88s? I want to just do a straight up swap with no modification. A locker would be great but I've heard those only come with OEM 4.10 gears.. true or false? A locker would drive me to do the extra modification.

Thanks to anyone who can help

brian2sun · 02-07-2010, 11:06 PM

An elocked diff will require modification to your axle. The highest elocked diff you are likely to find is a 4.30. You could buy an entire 4runner axle w/ a factory elocker and 4.30s if you want to go the easier labor route and avoid the cutting and welding, but it would cost more.

4.11s would be a pretty insignificant difference, so I would go with at least 4.30s. If you decide to just change your ring and pinion only and forget the elocker, I would get 4.56s since you have the choice and they will give you a little more power/torque than the 4.30s - especially since you have a 4 banger.

vital22re · 02-07-2010, 11:12 PM

i've got 4.56 with a 3.4 and 5spd 265/75/16.. 1st gear is barely a second long. 70mph is 3000rpm. Granted its nice for towing.. but for daily driving its a pita... just my experience.

brian2sun · 02-07-2010, 11:25 PM

Quote:

Originally Posted by vital22re

i've got 4.56 with a 3.4 and 5spd 265/75/16.. 1st gear is barely a second long. 70mph is 3000rpm. Granted its nice for towing.. but for daily driving its a pita... just my experience.

Wow that's high pretty high, I don't hit 3000 rpms until 80 miles per hour with 4.88s, but i'm running 285s and have an auto tranny. I would think the heavier 4runner with a 2.7 would still be better with 4.56s than 4.30s, but hopefully someone on here with that set up will chime in.

crolison · 02-08-2010, 05:31 AM

Quote:

Originally Posted by brian2sun

Wow that's high pretty high, I don't hit 3000 rpms until 80 miles per hour with 4.88s, but i'm running 285s and have an auto tranny. I would think the heavier 4runner with a 2.7 would still be better with 4.56s than 4.30s, but hopefully someone on here with that set up will chime in.

If you got a heavy 2.7l runner just go 5.29's and call it done

brian2sun · 02-08-2010, 10:01 AM

Here' another option too, check out eastcoastgearsupply.com. You can buy an entire custom 3rd member with whatever ratio you want and while you're at it, you can have them install a locker of your choice also. They send it to you and once you install it, you send them your old 3rd back in the same box for a core refund.

xskydivingdudex · 02-09-2010, 07:58 PM

sry dont mean to jack ur thread but im currently running 285/75/16s and might go up to 315/75/16s and so my friend who has a tahoe told me to go with 4.56 gears if i go to 315/75/16s but id thought id ask some of u guys that know more bout 4runners. I only plan to regear if i go up to 315s and this is my daily driver and i do about 80% if not more of my driving on the highway. I was thinking bout 4.88 gears but im not all that sure... also where and which brand should i get?

My 4runner: 2002 4runner 3.4L 2wd sport

brian2sun · 02-09-2010, 10:34 PM

4.56s for a V8 Tahoe on 35s probably works out good, but I think 4.56 is a little weak for 35s on a 4runner. 4.88s at least, I'd go w/ 5.29s if it was me. Just out of curiosity, why do you want to run 35s on a DD?

gryllswannabe · 02-11-2010, 12:51 AM

I am bouncing some of the same questions around.

First let me explain my ride.
1985 4Runner SR5 22RE...and as of now (for a very short period of time might I add) it's stock...
Its purpose is driving to trails (some rather far away) for hunting, fishing, climbing, and just plain fun!

Now for my thoughts and ideas.
I am thinking that I should go with at least a 4.88 since i will be running AT LEAST
33 12.50's I am really thinking about 34 14.50's

Now for you all to continue telling me your experiences...

P.S. My knowledge is limited so please don't blow my mind with extremely technical info, try to break it down for us simpletons...THANKS!!!

xskydivingdudex · 02-11-2010, 06:08 AM

well brian i want 35s just bc i like the ride height and i do occasional offroad/mudding but this is the only car im gonna have for a LONG time... and i figure it wont be too bad if i can get close to stock MPGs.

12-01-2009, 12:01 AM	#2 (permalink)
SpecialScottie Registered User Join Date: Jan 2008 Location: Sun Valley, CA Posts: 767	4cyl or V6? If you have the 4cyl Id go with the 4.88s __________________ 02 KLX300 Dual Sported (Daily Driver) 85 4runner:Chevy 63's- RUF-Crossover-5speed swapped-Dual cases w/marlin adapter-5.29's-Marlin Rear Elocker-Rola roof rack-8K smitty built winch-IFS Rear-33" BFG KM2's-Gray Interior from an 87-4X Innovations internal cage Build Thread

12-01-2009, 12:15 AM	#3 (permalink)
91Toyota Registered User Join Date: Feb 2008 Location: Salem, OR Posts: 2,804	definitely need to know what you have under the hood! __________________ 1983 Toyota Tercel 4wd 62hp 1999 Dodge Cummins 3500 Last edited by 91Toyota; 12-01-2009 at 12:32 AM.

12-01-2009, 01:31 AM	#6 (permalink)
stormin94 Contributing Member Join Date: Jun 2007 Location: Lake County, CA/Sacramento Posts: 4,202	Then 4.56 should be adequate. __________________ 1994 Toyota 4Runner SR5 4X4 221,500 miles and counting 3.0 V6, 5 speed 10/15 MPG city/hwy(with 33's) Current Mods Headers, 2.5" Flowmaster custom exhaust, K&N FIPK KC Daylighters, electric fan Ranchos x4, 2" Lift Downey coils 33-12.50 M/T's, 1" t-bar lift, 1" body lift Tow pkg w/ lighthookups Silverstar Headlights, Pioneer Deck w/XM Brushguard 250Watt JLAudio 8" W3 Sub Future Mods 12V Aux outlet-400/800peak inverter roof basket/lights Air locker 4.88 gears H.O. Alternator

12-01-2009, 08:12 AM	#7 (permalink)
crolison Registered User Join Date: Mar 2007 Location: TN Posts: 2,437	4.88's __________________ SAS: GONE ON A BOAT June 12th - August 21st Canada, Spain, Italy, Croatia, Greece, Turkey, Egypt, Morocco - Here I come! Corrosion 2.0: Coming this fall to a trail near you

12-01-2009, 10:47 AM	#8 (permalink)
*Go Overland!* Premium Sponsor Join Date: Dec 2005 Location: Dallas Posts: 379	On my '98 with 255/85/16 tires at 65 miles per hour with 4:88 gears I'm turning 2300 RPMs. V6, auto. Jacque __________________ Phone 866-632-6020 Best way to contact EMAIL info@gooverland.com http://www.gooverland.com http://www.trdparts4u.com

12-01-2009, 12:52 AM	#5 (permalink)
traxxi2003 Registered User Join Date: Jul 2009 Posts: 26	Sorry! V6 3.4L

12-01-2009, 05:19 PM	#10 (permalink)
brian2sun Registered User Join Date: May 2009 Location: Lake Arrowhead, CA Posts: 1,356	I'm very glad that I did not go w/ 4.56s - would have been a lot of $$ for a marginal difference. 4.88s are the way to go w/ a 3.4 and 33s. __________________ *'97 4Runner SR5 3.4L 4x4 200K Mile Club * Trail & Snow Rig 3" Suspension Lift - 883s/891s, 1" 4Crawler BL, OME Comfort Shocks, 255/85R16 Bighorn M/Ts on 16x7 (4" BS) Cragar Soft 8 Wheels Rear ARB Locker , 4.88s, Sliders, ARB Bullbar, CBI Rear Bumper w/ Tire Carrier (on the way), No Sway Bars, No ABS My Build Thread '05 Honda CR-V 2WD LX * 29+ Hwy MPGs * D.D.**

12-01-2009, 05:32 PM	#11 (permalink)
82blueyota Registered User Join Date: Jul 2009 Location: spokane wa Posts: 124	so i have a 82 1st gen with the 22r. would 4.88 be to much for 30" tires or would 4.56 do the job can you still do 70 with lower gears

12-01-2009, 05:37 PM	#12 (permalink)
camo31"10.50" Registered User Join Date: Aug 2007 Location: Vian, OK Posts: 3,621	well if your gonna stick with the 30" tires..or never go bigger than a 31" tire..then yea 4.56's would be good..but if ya plan on goin any bigger..get the 4.88's __________________ FOR SALE 1986 Ext. Cab 4x4, rebuilt 22R, 5spd, 31x10.50 X-Terrains FOR SALE 1992 SR5 4runner V6, 5 speed, 4in. trail-master lift, 33x12.50 BFG muds, 4.56 gears!!! and an IMMACULATE interior..yes..you should be jealous "Its still a toyota man.. Dont deprive it of its capabilities.." "If you can read english, Thank a teacher...If you can speak it, Thank a soldier!!" Kelli Ruark-2009

12-01-2009, 09:47 PM	#13 (permalink)
traxxi2003 Registered User Join Date: Jul 2009 Posts: 26	Thanks everyone for replying back. I'm definetly going with 4.88. Its only about 200-300 rpm increase from my current setup. Hopefully that will translate in a decent performance increase even after upgrading to 33's.

12-02-2009, 08:51 AM	#14 (permalink)
ESQ Registered User Join Date: Jun 2009 Location: British Columbia Posts: 202	4.88 for manual, 5.29 for automatic (because of the 5th gear and overdrive ratio differences). __________________ My Build Thread The 4Cruiser: 98 4Runner SR5, 5VZ-FE, Sonoran Steel 1.2, BCC custom swing-arm rear armour, full Budbuilts, 285/75R16 Goodyear Duratracs, extended diff breather, airbox deckplate, red LED cluster, console,Wabfab front discos, Warn M8000 winch, Shrockworks full hoop, PIAA 520s and 510s, Stubbs HD-SKO Sliders, External tran coolerw/bypass, Tundra brakes, dyneema winchline 5.29s and ARB lockers next!!!!

12-02-2009, 05:42 PM	#15 (permalink)
82blueyota Registered User Join Date: Jul 2009 Location: spokane wa Posts: 124	I do 70 every day to work its my dd works great at that speed

02-07-2010, 10:02 PM	#16 (permalink)
ChildrenOfBodom Registered User Join Date: Jul 2009 Location: Mission Viejo, CA Posts: 39	I have a 99 2.7 2WD with 265/70/17's. I have 3.91's stock I am pretty sure so I was gonna swap to another 4Runner diff. My problems really are that I have no low end power and when going uphill, I can barely get up most of the time. Uphill on the way to Mt. Baldy then actually climbing the mountain was awful. When the car is loaded, flooring it couldn't keep me up with the Sienna in front of me. I would love some acceleration for those "Lane Merges Ahead" types of deals, etc. So what would one recommend? 4.56s, 4.88s? I want to just do a straight up swap with no modification. A locker would be great but I've heard those only come with OEM 4.10 gears.. true or false? A locker would drive me to do the extra modification. Thanks to anyone who can help __________________ 1999 Toyota 4Runner 3RZ (Base Model turned SR5) 4.56's + Detroit Truetrac Positraction BFG A/T (265/70/17) on 17" Tundra Rims, '99 Springs, Bilsteins, K&N Intake, LC Engineering Headers, 2.5" MagnaFlow Cat, 24" MagnaFlow Muffler, Red 231mm Tundra NHT Calipers and Brembo Blank Rotors, Skid Row Offroad Skidplate Viper 791XV 2-Way/Remote Start, Sport Hood, Black Billet Grille, LED tails, Clear lenses, Black Emblems See my Cardomain! \| My 4Runner Timeline

02-07-2010, 11:06 PM	#17 (permalink)
brian2sun Registered User Join Date: May 2009 Location: Lake Arrowhead, CA Posts: 1,356	An elocked diff will require modification to your axle. The highest elocked diff you are likely to find is a 4.30. You could buy an entire 4runner axle w/ a factory elocker and 4.30s if you want to go the easier labor route and avoid the cutting and welding, but it would cost more. 4.11s would be a pretty insignificant difference, so I would go with at least 4.30s. If you decide to just change your ring and pinion only and forget the elocker, I would get 4.56s since you have the choice and they will give you a little more power/torque than the 4.30s - especially since you have a 4 banger. __________________ *'97 4Runner SR5 3.4L 4x4 200K Mile Club * Trail & Snow Rig 3" Suspension Lift - 883s/891s, 1" 4Crawler BL, OME Comfort Shocks, 255/85R16 Bighorn M/Ts on 16x7 (4" BS) Cragar Soft 8 Wheels Rear ARB Locker , 4.88s, Sliders, ARB Bullbar, CBI Rear Bumper w/ Tire Carrier (on the way), No Sway Bars, No ABS My Build Thread '05 Honda CR-V 2WD LX * 29+ Hwy MPGs * D.D.**

02-07-2010, 11:12 PM	#18 (permalink)
vital22re Registered User Join Date: Feb 2006 Location: kirkland washington Posts: 3,432	i've got 4.56 with a 3.4 and 5spd 265/75/16.. 1st gear is barely a second long. 70mph is 3000rpm. Granted its nice for towing.. but for daily driving its a pita... just my experience. __________________ RB4R- SA 92 toyota truck supercharged 3.4 urd 7th injector kit 5spd 4.56 gears magna flow cat and muffler2 1/4 piping isr mod, 1" BL, trail gear sliders, 1.5 bjsfront add a leafs and 2inch lift shackles rear, rancho shocks all around sitting on 265/75/r16 nitto terra grapplers Kill you for a dollar?

02-08-2010, 10:01 AM	#21 (permalink)
brian2sun Registered User Join Date: May 2009 Location: Lake Arrowhead, CA Posts: 1,356	Here' another option too, check out eastcoastgearsupply.com. You can buy an entire custom 3rd member with whatever ratio you want and while you're at it, you can have them install a locker of your choice also. They send it to you and once you install it, you send them your old 3rd back in the same box for a core refund. __________________ *'97 4Runner SR5 3.4L 4x4 200K Mile Club * Trail & Snow Rig 3" Suspension Lift - 883s/891s, 1" 4Crawler BL, OME Comfort Shocks, 255/85R16 Bighorn M/Ts on 16x7 (4" BS) Cragar Soft 8 Wheels Rear ARB Locker , 4.88s, Sliders, ARB Bullbar, CBI Rear Bumper w/ Tire Carrier (on the way), No Sway Bars, No ABS My Build Thread '05 Honda CR-V 2WD LX * 29+ Hwy MPGs * D.D.**

02-09-2010, 07:58 PM	#22 (permalink)
xskydivingdudex Registered User Join Date: Oct 2007 Location: San Antonio, TX Posts: 267	sry dont mean to jack ur thread but im currently running 285/75/16s and might go up to 315/75/16s and so my friend who has a tahoe told me to go with 4.56 gears if i go to 315/75/16s but id thought id ask some of u guys that know more bout 4runners. I only plan to regear if i go up to 315s and this is my daily driver and i do about 80% if not more of my driving on the highway. I was thinking bout 4.88 gears but im not all that sure... also where and which brand should i get? My 4runner: 2002 4runner 3.4L 2wd sport __________________ 2002 4runner Sport Edition \| DDM Tuning HID Kit \| Sylvania Silverstars \| OME 882/891 with Comfort Shocks \| 285/75 BFG All-Terrains \| All-Pro Wheel Spacers \| PIAA/BAJA Lights \| Rola Vortex Roof Rack \|

02-09-2010, 10:34 PM	#23 (permalink)
brian2sun Registered User Join Date: May 2009 Location: Lake Arrowhead, CA Posts: 1,356	4.56s for a V8 Tahoe on 35s probably works out good, but I think 4.56 is a little weak for 35s on a 4runner. 4.88s at least, I'd go w/ 5.29s if it was me. Just out of curiosity, why do you want to run 35s on a DD? __________________ *'97 4Runner SR5 3.4L 4x4 200K Mile Club * Trail & Snow Rig 3" Suspension Lift - 883s/891s, 1" 4Crawler BL, OME Comfort Shocks, 255/85R16 Bighorn M/Ts on 16x7 (4" BS) Cragar Soft 8 Wheels Rear ARB Locker , 4.88s, Sliders, ARB Bullbar, CBI Rear Bumper w/ Tire Carrier (on the way), No Sway Bars, No ABS My Build Thread '05 Honda CR-V 2WD LX * 29+ Hwy MPGs * D.D.**

02-11-2010, 12:51 AM	#24 (permalink)
gryllswannabe Registered User Join Date: Feb 2010 Location: NC Posts: 37	I am bouncing some of the same questions around. First let me explain my ride. 1985 4Runner SR5 22RE...and as of now (for a very short period of time might I add) it's stock... Its purpose is driving to trails (some rather far away) for hunting, fishing, climbing, and just plain fun! Now for my thoughts and ideas. I am thinking that I should go with at least a 4.88 since i will be running AT LEAST 33 12.50's I am really thinking about 34 14.50's Now for you all to continue telling me your experiences... P.S. My knowledge is limited so please don't blow my mind with extremely technical info, try to break it down for us simpletons...THANKS!!! Last edited by gryllswannabe; 02-11-2010 at 12:56 AM.

02-11-2010, 06:08 AM	#25 (permalink)
xskydivingdudex Registered User Join Date: Oct 2007 Location: San Antonio, TX Posts: 267	well brian i want 35s just bc i like the ride height and i do occasional offroad/mudding but this is the only car im gonna have for a LONG time... and i figure it wont be too bad if i can get close to stock MPGs. __________________ 2002 4runner Sport Edition \| DDM Tuning HID Kit \| Sylvania Silverstars \| OME 882/891 with Comfort Shocks \| 285/75 BFG All-Terrains \| All-Pro Wheel Spacers \| PIAA/BAJA Lights \| Rola Vortex Roof Rack \| Last edited by xskydivingdudex; 02-11-2010 at 06:27 AM.

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