4.30 to 4.88 31 to 33

Bejiita · 05-11-2007, 06:40 AM

So I had 4.30s in my truck with 31s and went to a 33x12.50 and regeared to a 4.88 I normally like to do all my own work but I know nothing about gears so I had someone else do it but anyways.....What should I expect? A HUGE difference or just slightly better acceleration and rpm change? I get the truck back today hopefully and just curious to see what people have to say. Is there breakin on gears? I plan on driving nicely for 500 miles or so before I do any wheeling.

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Albuquerque Jim · 05-11-2007, 07:19 AM

Sorry, I don't have the answer to your question. But, I am interested in your rear 4.30 gears if they are in good condition.

d0ubledown · 05-11-2007, 08:10 AM

your results should be a bit lower than stock, thus giving you more pep off the line, but a bit higher rpm's are cruising speed. easy to calculate:

(old tire dia / old gears) X new gears = new tire diameter for stock feel.

(31/4.30) X 4.88 = 35's. but since you'll have 33's, you'll be slightly geared lower than you were originally...

yep with new gears, take it easy on the first 500. no punching off the line or towing or really hard acceleration. change fluids after 500 n you should be good to go! :great

chimmike · 05-11-2007, 08:33 AM

wait....are you 2wd or 4wd?

I had 4.56's stock as 4wd and that's the lowest I've ever seen a 4wd come in.....and I upgraded to 5.29s.

I'm hoping you're 2wd to have been stuck with 4.30's stock!

RustBucket · 05-11-2007, 08:34 AM

You're notice a 4.88/4.30 = 1.13 = 13% increase in torque!

91TPU · 05-11-2007, 08:47 AM

Quote:

Originally Posted by chimmike

wait....are you 2wd or 4wd?

I had 4.56's stock as 4wd and that's the lowest I've ever seen a 4wd come in.....and I upgraded to 5.29s.

I'm hoping you're 2wd to have been stuck with 4.30's stock!

in his profile is says 4x4 SR5...i wish i came with 4.30's stock...stupid 4.10's

d0ubledown · 05-11-2007, 08:52 AM

hmm..not sure if the 5sp came with 4.30. i thought it was only the auto's with 31's that had the 4.30's? regardless...4.88's will be a heck of a lot better

GV27 · 05-11-2007, 08:59 AM

Guy's he's also going to bigger tires. For the most part the two will cancel each other out. If you could tell no difference, the gears are doing the job - just putting bigger tires on without gearing would make it considerably slower.

yotasavg · 05-11-2007, 09:38 AM

Quote:

Originally Posted by chimmike

wait....are you 2wd or 4wd?

I had 4.56's stock as 4wd and that's the lowest I've ever seen a 4wd come in.....and I upgraded to 5.29s.

I'm hoping you're 2wd to have been stuck with 4.30's stock!

what??? a LOT of pickups came with 4.10's stock. i'm glad i have 4.88's!!!

Bejiita · 05-11-2007, 09:50 AM

4WD only autos are supposed to have 4.30s but I have them in my 5 speed for some reason, the rear 4.30s look good they got a little over 150K if you want them gimme shipping and 20 bucks and they are yours. I thought I had 4.56s also until I pulled up my axle code and saw that I had auto gears in my truck.

chimmike · 05-11-2007, 09:59 AM

I thought the good 4x4 auto 4runners had 4.56's and 4.88s were the better upgrade. I had like 4.30s or worse stock :/

Bejiita · 05-11-2007, 10:01 AM

Yah I was excited when I thought I had 4.56s then I found out I had 4.30s and my truck lost some cool points.

Bejiita · 05-11-2007, 12:58 PM

Hey chimike hows the locker in the front and open rear workin out for you? Ive never seen the front locked up and the rear not Ive been told that front lockers are a bad idea and I dont wanna start a flaming war about how they arent/are bad/good I just heard they arent the safest thing

EUROJulian · 05-11-2007, 01:27 PM

Quote:

Originally Posted by RustBucket

You're notice a 4.88/4.30 = 1.13 = 13% increase in torque!

really?... you do not take into consideration total total power train ratio that include rolling diameter of bigger tires.

Bejiita · 05-11-2007, 03:49 PM

Yay I got my truck back and holy moly it made a huge difference. Before I couldnt hit 70 downhill with a backwind and I can easily hit 75 and keep it uphill so it brought it back where I needed it.

aviator31 · 05-11-2007, 03:59 PM

Do you need 4.88s to run 33s on a 99 Runner V6?

Bejiita · 05-11-2007, 05:00 PM

What engine? If its a 3.4 probably not but it wouldnt hurt, 3.0s dont have the power to push 33s realisticyl without at least 4.56s i think but a 3.4 has a lot more power, if you have a 4 cylinder then a regear would probably be in good order

UKMyers · 05-11-2007, 05:23 PM

You'll notice a huge difference. I did the exact same change. I could tell as soon as I let the clutch out. I was at 3K on the tach cruising at 70mph with my 5 speed. You'll really notice a difference in 4Lo too. Have fun with your new found power. I think my truck went better after my 4.88 swap than it did bone stock. 4.30's suck.

Bejiita · 05-11-2007, 06:56 PM

Yah its definantly more streetable thats for damn sure. It cruises a little better on the highway also but I dont like the high rpms on the highway but its better then bogging it out the whole time not being able to get close to the speed limit.

Emms4runner · 05-11-2007, 11:26 PM

Let us know if she starts drinking more juice.....

05-11-2007, 07:19 AM	#2 (permalink)
Albuquerque Jim Contributing Member Personal Sales Rating: (0) Join Date: Apr 2003 Location: Albuquerque, NM Posts: 2,550	Sorry, I don't have the answer to your question. But, I am interested in your rear 4.30 gears if they are in good condition. __________________ '00 SR5, "Highlander" Dual Cases, Aisin Hubs, E-Lock'd, Cryo'd, Chromo'd, ARB'd, 315's, Sonoran Steel Bumper, Lift & UCA's, 4 Crawl 1" BL, Armored...etc. F-Toy #081 in progress Dual Cases, 30 Splines, 5.71's, E-lockers, Hydro-Assist, 37's, DOM Hendrix Chassis, 80Proof, ORS, Sonoran Steel...etc.

05-11-2007, 08:10 AM	#3 (permalink)
d0ubledown Contributing Member Personal Sales Rating: (0) Join Date: Dec 2005 Location: vansterdam BC. Posts: 1,428	your results should be a bit lower than stock, thus giving you more pep off the line, but a bit higher rpm's are cruising speed. easy to calculate: (old tire dia / old gears) X new gears = new tire diameter for stock feel. (31/4.30) X 4.88 = 35's. but since you'll have 33's, you'll be slightly geared lower than you were originally... yep with new gears, take it easy on the first 500. no punching off the line or towing or really hard acceleration. change fluids after 500 n you should be good to go! :great __________________ sonny ------- 1998 4Runner LTD. Fabtech CO fronts, OME/Pro Comp rears, SS rear links, Revtek diff drop, oem elocker, ARB RD90, 4.88's, 315/75/16 MT/R's on FZJ-80's, Trail Gear sliders, ARB Prado Bar, 1.5" 4Crawler BL, Tundra Brakes, wabfab disco's, IPF's...satoshi'd deckplated & ISR'd. SOLD!!! new ride: 1997 FZJ80. ome/arb/bfg/etc. when clinton lied..nobody died

05-11-2007, 08:33 AM	#4 (permalink)
chimmike Contributing Member Personal Sales Rating: (0) Join Date: Jan 2007 Location: SRQ, FL Posts: 1,522	wait....are you 2wd or 4wd? I had 4.56's stock as 4wd and that's the lowest I've ever seen a 4wd come in.....and I upgraded to 5.29s. I'm hoping you're 2wd to have been stuck with 4.30's stock! __________________ '03 350z Turbocharged (totalled :( ) '04 Honda Accord LX V6 (first bone stock car I've owned in a while) 94 4runner SR5 4x4, 31x10.5's, SAS, Warn M8000 winch, Allpro bumper, Summit (K&N FIPK in different wrapping) CAI, flowmaster muff, 5.29's FOR SALE! '07 Harley-Davidson XL1200c, rush slip-ons

05-11-2007, 08:34 AM	#5 (permalink)
RustBucket Registered User Personal Sales Rating: (0) Join Date: Aug 2005 Location: Atlanta Posts: 1,368	You're notice a 4.88/4.30 = 1.13 = 13% increase in torque! __________________ Rust-Free '88 Runner. Stay-at-home truck.

05-11-2007, 08:52 AM	#7 (permalink)
d0ubledown Contributing Member Personal Sales Rating: (0) Join Date: Dec 2005 Location: vansterdam BC. Posts: 1,428	hmm..not sure if the 5sp came with 4.30. i thought it was only the auto's with 31's that had the 4.30's? regardless...4.88's will be a heck of a lot better __________________ sonny ------- 1998 4Runner LTD. Fabtech CO fronts, OME/Pro Comp rears, SS rear links, Revtek diff drop, oem elocker, ARB RD90, 4.88's, 315/75/16 MT/R's on FZJ-80's, Trail Gear sliders, ARB Prado Bar, 1.5" 4Crawler BL, Tundra Brakes, wabfab disco's, IPF's...satoshi'd deckplated & ISR'd. SOLD!!! new ride: 1997 FZJ80. ome/arb/bfg/etc. when clinton lied..nobody died

05-11-2007, 08:59 AM	#8 (permalink)
GV27 Registered User Personal Sales Rating: (0) Join Date: May 2003 Location: Green Mountain, Colorado Posts: 479	Guy's he's also going to bigger tires. For the most part the two will cancel each other out. If you could tell no difference, the gears are doing the job - just putting bigger tires on without gearing would make it considerably slower. __________________ 1998 4-Runner SR5 3.4 Manual 1992 4-Runner SR5 3.Slow - 230k+ miles. 1990 Alfa Romeo Spider Veloce

05-11-2007, 09:50 AM	#10 (permalink)
Bejiita Registered User Personal Sales Rating: (0) [OP] Join Date: Apr 2006 Location: Wyoming Posts: 223	4WD only autos are supposed to have 4.30s but I have them in my 5 speed for some reason, the rear 4.30s look good they got a little over 150K if you want them gimme shipping and 20 bucks and they are yours. I thought I had 4.56s also until I pulled up my axle code and saw that I had auto gears in my truck. __________________ 1995 4Runner 3.0 V6 5Speed. 33x12.50 BFG Mud Terrains. Torsions turned up, 1.5'' BJ Spacers, 2'' Coil spring spacers, Eibach rear coils; about 3'' of lift? 4.88s. Custom intake. Custom exhaust. 1500 Watt sound system. Centerforce Pressure Plate/Clutch. Yakima roof rack setup with 4 baja lights. My rig page: http://yotatech.com/showthread.php?p...1#post50467261

05-11-2007, 09:59 AM	#11 (permalink)
chimmike Contributing Member Personal Sales Rating: (0) Join Date: Jan 2007 Location: SRQ, FL Posts: 1,522	I thought the good 4x4 auto 4runners had 4.56's and 4.88s were the better upgrade. I had like 4.30s or worse stock :/ __________________ '03 350z Turbocharged (totalled :( ) '04 Honda Accord LX V6 (first bone stock car I've owned in a while) 94 4runner SR5 4x4, 31x10.5's, SAS, Warn M8000 winch, Allpro bumper, Summit (K&N FIPK in different wrapping) CAI, flowmaster muff, 5.29's FOR SALE! '07 Harley-Davidson XL1200c, rush slip-ons

05-11-2007, 10:01 AM	#12 (permalink)
Bejiita Registered User Personal Sales Rating: (0) [OP] Join Date: Apr 2006 Location: Wyoming Posts: 223	Yah I was excited when I thought I had 4.56s then I found out I had 4.30s and my truck lost some cool points. __________________ 1995 4Runner 3.0 V6 5Speed. 33x12.50 BFG Mud Terrains. Torsions turned up, 1.5'' BJ Spacers, 2'' Coil spring spacers, Eibach rear coils; about 3'' of lift? 4.88s. Custom intake. Custom exhaust. 1500 Watt sound system. Centerforce Pressure Plate/Clutch. Yakima roof rack setup with 4 baja lights. My rig page: http://yotatech.com/showthread.php?p...1#post50467261

05-11-2007, 12:58 PM	#13 (permalink)
Bejiita Registered User Personal Sales Rating: (0) [OP] Join Date: Apr 2006 Location: Wyoming Posts: 223	Hey chimike hows the locker in the front and open rear workin out for you? Ive never seen the front locked up and the rear not Ive been told that front lockers are a bad idea and I dont wanna start a flaming war about how they arent/are bad/good I just heard they arent the safest thing __________________ 1995 4Runner 3.0 V6 5Speed. 33x12.50 BFG Mud Terrains. Torsions turned up, 1.5'' BJ Spacers, 2'' Coil spring spacers, Eibach rear coils; about 3'' of lift? 4.88s. Custom intake. Custom exhaust. 1500 Watt sound system. Centerforce Pressure Plate/Clutch. Yakima roof rack setup with 4 baja lights. My rig page: http://yotatech.com/showthread.php?p...1#post50467261

05-11-2007, 03:49 PM	#15 (permalink)
Bejiita Registered User Personal Sales Rating: (0) [OP] Join Date: Apr 2006 Location: Wyoming Posts: 223	Yay I got my truck back and holy moly it made a huge difference. Before I couldnt hit 70 downhill with a backwind and I can easily hit 75 and keep it uphill so it brought it back where I needed it. __________________ 1995 4Runner 3.0 V6 5Speed. 33x12.50 BFG Mud Terrains. Torsions turned up, 1.5'' BJ Spacers, 2'' Coil spring spacers, Eibach rear coils; about 3'' of lift? 4.88s. Custom intake. Custom exhaust. 1500 Watt sound system. Centerforce Pressure Plate/Clutch. Yakima roof rack setup with 4 baja lights. My rig page: http://yotatech.com/showthread.php?p...1#post50467261

05-11-2007, 03:59 PM	#16 (permalink)
aviator31 Registered User Personal Sales Rating: (0) Join Date: Apr 2007 Location: Centerton,AR Posts: 203	Do you need 4.88s to run 33s on a 99 Runner V6?

05-11-2007, 05:00 PM	#17 (permalink)
Bejiita Registered User Personal Sales Rating: (0) [OP] Join Date: Apr 2006 Location: Wyoming Posts: 223	What engine? If its a 3.4 probably not but it wouldnt hurt, 3.0s dont have the power to push 33s realisticyl without at least 4.56s i think but a 3.4 has a lot more power, if you have a 4 cylinder then a regear would probably be in good order __________________ 1995 4Runner 3.0 V6 5Speed. 33x12.50 BFG Mud Terrains. Torsions turned up, 1.5'' BJ Spacers, 2'' Coil spring spacers, Eibach rear coils; about 3'' of lift? 4.88s. Custom intake. Custom exhaust. 1500 Watt sound system. Centerforce Pressure Plate/Clutch. Yakima roof rack setup with 4 baja lights. My rig page: http://yotatech.com/showthread.php?p...1#post50467261

05-11-2007, 06:56 PM	#19 (permalink)
Bejiita Registered User Personal Sales Rating: (0) [OP] Join Date: Apr 2006 Location: Wyoming Posts: 223	Yah its definantly more streetable thats for damn sure. It cruises a little better on the highway also but I dont like the high rpms on the highway but its better then bogging it out the whole time not being able to get close to the speed limit. __________________ 1995 4Runner 3.0 V6 5Speed. 33x12.50 BFG Mud Terrains. Torsions turned up, 1.5'' BJ Spacers, 2'' Coil spring spacers, Eibach rear coils; about 3'' of lift? 4.88s. Custom intake. Custom exhaust. 1500 Watt sound system. Centerforce Pressure Plate/Clutch. Yakima roof rack setup with 4 baja lights. My rig page: http://yotatech.com/showthread.php?p...1#post50467261

05-11-2007, 11:26 PM	#20 (permalink)
Emms4runner Registered User Personal Sales Rating: (0) Join Date: Mar 2007 Location: Sydney, Australia Posts: 32	Let us know if she starts drinking more juice..... __________________ 1990 4runner-3.GO!, 2" Lift,Extractors, BFG M/Ts

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