Gear Ratio
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WhiteBoomer04
New member
Do you mean how do you identify which gear you have, or what gear you want to upgrade too?
And you realize you need front and rear gears to be the same right?
MaineRunna
Member
Call the dealer with VIN, get the axle code and decode it, or mark the driveshaft and count how many times it rotates to one revolution of of the tire rolling or driving the vehicle in a straight line.
dogtail
New member
Check your vin sticker, get gear code, and thats the ratio. Heres mine an "03" code shows as 4.10 gears. You can double check with a spin test, and also count the gear teeth. Heres a gear chart I grabbed off the net a while back, not sure where I found it.
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96RedRunner
Senior Member
Spin test never lie's.
Have heard of the sticker codes being unreliable for couple decades. In the couple decades have messed with dozen or so Runners knowing they were as left the factory, stickers were correct. Have always wondered what situation got the "unreliable" statement going. With the carnage mismatched gears can cause def worth knowing.
thegipper
New member
Yeah that's what I've read on here for a few years now is to never trust the sticker. The spin test never lies but the instances where the sticker didn't match the actual gears could have been due them being re-geared at some point? Hard to know for sure.
When I swapped the 3rd member from my 99 parts truck into my 97 (previous owner had a trutrac LSD installed in the 99 that I wanted), I didn't want to trust the stickers so I just did the spin test. 10 minutes of my time and I knew both were 4.10 so I was GTG.
When I swapped the 3rd member from my 99 parts truck into my 97 (previous owner had a trutrac LSD installed in the 99 that I wanted), I didn't want to trust the stickers so I just did the spin test. 10 minutes of my time and I knew both were 4.10 so I was GTG.
gamefreakgc
Elite Member
Whoa whoa whoa, back up. There's a 4Runner than came with 4.56 gears??? Any idea which ones? I would LOVE to swap those into mine.
dogtail
New member
For 3rd gens, I think 4.56 only came on 4cyl/5spd
Scramble
New member
Mine does ya freak! 3RZ - 5 Speed. :wink2: I even swapped them out of my old axle housing into my 2000 e-locker housing. All of my teeth were in perfect condition.
20170902_121132 by Mike Campbell, on Flickr
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I think that's why everyone says 5-speed, 4cyl, 4WD with E-locker is a unicorn...
96RedRunner
Senior Member
Good luck finding one, found a 4.56 front pretty quick, never did find 4.56 locker rear in 8 yr., was on used parts want list kept
search/want current up to date. 5-speed, 4cyl, 4WD with E-locker is a unicorn... Has to be the least available version in US seems like..
I finally put the front to use after adding Harrop locker, finding a 2k E-locker axle swapped to 4.56 in the 01 that replaced 96Red. Break in miles finished last month, for how I use it 4.56's with dual lockers is sweet.
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thezentree
Senior Member
What size tires? I'm on 285s and am debating 4.56s or 4.88.
96RedRunner
Senior Member
285/75-16" no intentions of going taller, If you think you might go 4.88's. Who I bought front diff from went taller and 4.88's.
ckhirnigs113
Junior Member
I know gearing questions have been beaten to death on here, but I have a question I can't seem to find a conclusive answer to. I just bought an '02 SR5 V6 4WD automatic that has stock 15" tires on it. I want to move up to at least 31" tires because the 225/75R15's look pretty pitiful.
I don't plan to do much off-roading with the truck. It's most likely going to be my daily driver. I did the spin test and concluded I have 3.73 gears. From everything I've read, only 2WD 4Runners had 3.73. I was expecting 3.91 or perhaps 4.10. Have any of you ever seen/heard of a 3rd gen with 4WD and a v6 having 3.73 gears?
I just bought some used 17" wheels that came off a 2010 4Runner. I was thinking about getting either 265/65R17 or 265/70R17 tires. Now that I know I have the highest gears, I'm wondering if I should stick to a more modest size in the 30-31" height, maybe something like a 245/70R17 (30.5").
Here's a picture of the style wheels I picked up (for $50!):
I don't plan to do much off-roading with the truck. It's most likely going to be my daily driver. I did the spin test and concluded I have 3.73 gears. From everything I've read, only 2WD 4Runners had 3.73. I was expecting 3.91 or perhaps 4.10. Have any of you ever seen/heard of a 3rd gen with 4WD and a v6 having 3.73 gears?
I just bought some used 17" wheels that came off a 2010 4Runner. I was thinking about getting either 265/65R17 or 265/70R17 tires. Now that I know I have the highest gears, I'm wondering if I should stick to a more modest size in the 30-31" height, maybe something like a 245/70R17 (30.5").
Here's a picture of the style wheels I picked up (for $50!):
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UnderFire
New member
4 cylinder 5 speed 4x4 elocker got 4.56 (ultra rare) and 4 cylinder automatic 4x4 16" wheels got them too, can't confirm yet but 15" wheels might have got them.
Sent from my JSN-L23 using Tapatalk
UnderFire
New member
So V6 Auto 4X4 but it had 15" wheels and 225/75R15? That's a super odd combo. My 4 cylinder 2wd 5 speed with 15's came with a 3.73 rear diff but I've seen no indication that a front diff with 3.73 ever existed until now.I know gearing questions have been beaten to death on here, but I have a question I can't seem to find a conclusive answer to. I just bought an '02 SR5 V6 4WD automatic that has stock 15" tires on it. I want to move up to at least 31" tires because the 225/75R15's look pretty pitiful.
I don't plan to do much off-roading with the truck. It's most likely going to be my daily driver. I did the spin test and concluded I have 3.73 gears. From everything I've read, only 2WD 4Runners had 3.73. I was expecting 3.91 or perhaps 4.10. Have any of you ever seen/heard of a 3rd gen with 4WD and a v6 having 3.73 gears?
I just bought some used 17" wheels that came off a 2010 4Runner. I was thinking about getting either 265/65R17 or 265/70R17 tires. Now that I know I have the highest gears, I'm wondering if I should stick to a more modest size in the 30-31" height, maybe something like a 245/70R17 (30.5").
Here's a picture of the style wheels I picked up (for $50!):
Regardless a set of stock 4.10s would be all you need to make it very close to right with anything from a 30-32" tall tire. Stock diffs can still be had regularly for 100$ a piece.
Sent from my JSN-L23 using Tapatalk
ckhirnigs113
Junior Member
I know 4.10s would be optimal for stock 31" tires, but my real question is whether there are any major downsides to using my current 3.73s with modestly larger tires. I wonder how noticeable the power loss will be. I'm not really looking into re-gearing at the moment.
I haven't put the new wheels on yet, so I'm wondering if it's worth it for a purely cosmetic upgrade. Sounds like very few people will have experience running 31s on 3.73 gears since my combination is so rare.
