What is my gearing?
- Thread starter spongerx
- Start date
Register to hide this ad
brian2sun
Elite Member
Online charts are widely unreliable. The SS chart was wrong on mine, it said I had 4.30s but I took out 4.11s when I re-geared.
I'm sure some will comment on how spinning the driveshaft is not a great method, but it's simple and if you are capable of dividing whole #s, it works. Jack up both rear tires off the ground. Have a buddy spin one of the tires all the way around TWICE and count the driveshaft revolutions. A little under 4 = 3.90s, aliitle over 4 = 4.11s, 4.3 = 4.30s, a little over 4.5 = 4.56s... Mark the tires and the driveshaft with "white-out" or something to make sure you're accurate.
I'm sure some will comment on how spinning the driveshaft is not a great method, but it's simple and if you are capable of dividing whole #s, it works. Jack up both rear tires off the ground. Have a buddy spin one of the tires all the way around TWICE and count the driveshaft revolutions. A little under 4 = 3.90s, aliitle over 4 = 4.11s, 4.3 = 4.30s, a little over 4.5 = 4.56s... Mark the tires and the driveshaft with "white-out" or something to make sure you're accurate.
spongerx
Member
If it makes any difference it's a 4x4, V6, manual 5-speed.
I'm not locked so I guess I have 4:10 but I'll try Brian2suns method in a few weeks when I visit my folks. I think I read somewhere that the 4:10s are ok with 285s.... thats my concern.
Hey Brian, what was it like re-gearing? Did you do it yourself? Expensive?
Last edited:
theizzardking
New member
parts are around 500 alone and labor will add more front ring and pinion and rear ing and pinion are about 180 each plus the install kit is about the same
8" V6, T4 REAR & FJ80 FRONT TOYOTA MASTER INSTALL KIT
Nitro Gear Set - RWK Haus Supply
and if your regearing i'd go with 4.56 it can run a wide range of tire sizes and heck since you got it all apart you should go ahead and buy a locker and chuck that in there.
i wouldn't attempt this if your not handy with your tools, as setting the tolerances in the r&p is crucial, i have good experience here but still payed someone todo it just in case if there was a screw up i would have some sort of warranty.
let me know if you want to order some, i can get a fair price on r&p through these guys.
Home - Nitro Gear & Axle
also if your just wanting the 4.30's he should have a few stock elockers laying around and can just ship that out to you and some gears for the front and get it 4.30's and a locker for about the same price as a complete gear swap.
gears done in a shop will cost about 800-1200 depending on who does the work.
quicksilvr
New member
4.10's are ok with 285's. You will notice some power loss, but it's very drivable. My brothers '96 Limited is lifted 3" with 285/75 BFG's. It has 4.10's and drives fine.
Lignum
New member
Here is my quote for regear from a local shop...
http://www.toyota-4runner.org/3rd-gen-t4rs/64225-quote-regear.html#post539991
http://www.toyota-4runner.org/3rd-gen-t4rs/64225-quote-regear.html#post539991
theizzardking
New member
hey hit me up if your looking for a locker and to regear, nitro gears is located in wanatchee and if you want we can try the install, i got a 10 million dollar shop down stairs here at work, so that's always an option.
and for the locker thing, i was told it's marginally better and equally marginally expensive to just use an arb. so in most cases the retro-fit isn't a good idea unless ouy have to have an e-locker. my in law at nitro gets the same free compressor deals that any other arb dealer is doing, so yeah man, i'd just stay away from rany's and the place in marysville you went to, my buddy arron worked there for about a year and told me some of the shit that went down there as well.
the only gears i would buy are yukon and nitro. and the only reason i know nitro is good is because i know the owners called the same manufactures that make the stock gears for the land cruisers and 4runners and asked them to make some gears for their company, so essentially their stock gears just a different cut. i ran yukons in my jeeps for years and never had a problem.
this is all from personal experience though so ask around on your own account and see what feels best to you.
brian2sun
Elite Member
John, Didn't some of the V6 4x4 come with 3.90s, I know the 4 bangers didn't come with 3.90s (they wouldn't have been able to hardly move!)? I'm pretty sure there are some out there. Also all the lockers came with 4.30s for 4runners, but I believe some came open with 4.30s too (that's what the online chart told me mine was).
Since you have a 5speed, I think 4.11s will be tolaerable, but with my auto, 4.11s were too slow for 285s and it drove me crazy. I also climb a 20 mile/6,000 ft. mountain pass 3-5 times a week too so I was really sick of my tranny constatly hunting for a gear going up the mtn. Now I just turn O/D off and it stays in 3rd gear the entire time, I go up faster than most cars, and it's wonderful. I also really think I added years to the life of my tranny by re-gearing since it used to shift 20-30 times going up that mtn and now it doesn't have to shift even once.
I'm very mechanical, but I've never done gears before so I didn't want my DD to be my guinea pig, so I left it to the pros and got a 3 year warranty on the install and the parts. I'm not sure exactly what it cost me for the install alone because I bought the gear sets, master bearing sets, an ARB locker, compressor and I had them all installed in one shot.
Since you have a 5speed, I think 4.11s will be tolaerable, but with my auto, 4.11s were too slow for 285s and it drove me crazy. I also climb a 20 mile/6,000 ft. mountain pass 3-5 times a week too so I was really sick of my tranny constatly hunting for a gear going up the mtn. Now I just turn O/D off and it stays in 3rd gear the entire time, I go up faster than most cars, and it's wonderful. I also really think I added years to the life of my tranny by re-gearing since it used to shift 20-30 times going up that mtn and now it doesn't have to shift even once.
I'm very mechanical, but I've never done gears before so I didn't want my DD to be my guinea pig, so I left it to the pros and got a 3 year warranty on the install and the parts. I'm not sure exactly what it cost me for the install alone because I bought the gear sets, master bearing sets, an ARB locker, compressor and I had them all installed in one shot.
xskydivingdudex
Senior Member
i have no ide wat gearing i have... i have a 2002 4runner sport 2wd auto but im on 285s and it seems to have a little loss in power but i drive typically still between 70-85 mph most of the time without a problem on flat lands and a little more pushing on gas petal unhill.
From wat i heard most ppl said i have to have 3.90s bc its 2wd... im wondering if anyone knows if its possible i have 4.10s.
From wat i heard most ppl said i have to have 3.90s bc its 2wd... im wondering if anyone knows if its possible i have 4.10s.
JohnsD90
New member
You could be right on the 3.90s but i think that was an 01 02 thing, i only agree cause of how much LINY4runner says he lost in power when he went up to 33s.
steezemcqueen
Moderator
wrong. 3.90's were all years. my parts rig has them.
and 4 cylinders were most commonly 4.10's. only 4 cylinders with 31's from the factory had 4.56's
spongerx
Member
Are you saying that I have 3:90s? I certainly don't want to throw 285s on and get 12 mpg. :redbrick:
steezemcqueen
Moderator
no sorry if it sounded that way...
to answer your question, i would bet you have 4.10s. generally the code A03A means 4.10s. i know the sticker isn't really accurate, but the fact that you are 4x4 V6 with a manual that had 265/70's makes me think it is true. my parts rig has 225's with 15 inch wheels.
brian2sun
Elite Member
I say probably not 3.90s, but it's possible. No way to know for sure online IMO, you just gotta check for yourself. A while back another member (I'm sorry I can't remember who) suggested spinning the tire 20 times instead of twice (x10) and count 41 revolutions for 4.10s, 43 for 4.30s, or (hopefully not) 39, haha.
steezemcqueen
Moderator
you can also use a calculator like this one
4Lo.com :: Final Gear Ratio, Crawl Ratio, Tire Size Calculators
what i did was check my rpm at 60MPH in 4th gear (1:1 ratio) and then measured the height of my tires. mine came out to 2800rpm in 4th at 60mph. then got my tire size and entered those into the calculator and left the final drive ratio blank. it gave me 4.1 so i got it right on. its easier to check in a manual since you can just put in in 4th and check. but it doesn't really matter what gear you are in as long as you know the ratio for it.
4Lo.com :: Final Gear Ratio, Crawl Ratio, Tire Size Calculators
what i did was check my rpm at 60MPH in 4th gear (1:1 ratio) and then measured the height of my tires. mine came out to 2800rpm in 4th at 60mph. then got my tire size and entered those into the calculator and left the final drive ratio blank. it gave me 4.1 so i got it right on. its easier to check in a manual since you can just put in in 4th and check. but it doesn't really matter what gear you are in as long as you know the ratio for it.
