Bama

So I am looking for some thoughts on running 35's on a 87 4runner with a 22re. Do I HAVE to re-gear? If I don't how much is it going to affect my truck? I realize to alot of you this probably sounds like a really stupid question. I am just trying to wrap my head around why and if i should regear, I probably will after a while but I am just wondering if I can leave it stock for a while.

Another thought, depending on how much regearing costs maybe it would be more bang for my buck just to do a v8 swap? Then I could keep the current gears right? Sorry, I have browsed around and found all kinds of info. I am just trying to take my truck in the right direction. Thanks

snobdds

Everyday someone asks this exact same question...I found this in exactly 2 seconds of searching.

https://www.yotatech.com/forums/f116...osting-204178/

cheez

no, you don't HAVE to re gear. It'll be slow as hell and put a lot of stress on your drive line components, though. you will be revving the piss out of it in a low gear to get up hills and 5th gear will only be useful down hill with a tail wind. I've looked into this with 33s in mind and that is the conclusion I've come to. I don't believe a properly done v8 swap will be cheaper, unless you've got the engine kicking around your shop. Even then, it's gonna cost as much as having gears installed. additionally, you have to look into beefier everything else with v8 power in a truck that was designed for a 116 hp 4 banger. IMHO.

yodafan93

well you dont HAVE to do anything.. but it would be smart to regear.. you will notice a massive difference.. it will be a total turd without being regeared, like.. 5th and 4th might be close to useless... i wouldnt do a v8 swap. 3rz would be much better. but i dont think regearing will out weigh that cost. for 35s, 5.29s i think are whats called for.

cheez

also, what Snobdds said.

derockus

iTrader: (1)

Stock tire size 225/75R15 = 28.3" X 8.9" R15
You want 35s
Stock tire circumference = 88.91"
35" tire circumference = 109.95"

So you're traveling 21.04" (or 23.66%) farther with each axle rotation than the stock engine was designed to.

With 4.10 gears:

If you wanna go 20mph in 2nd gear with stock tires you're running at 2100 rpms
If you wanna go 20mph in 2nd gear with 35" tires you're running at 1700 rpms

If you wanna go 65mph in 4th gear with stock tires you're running at 3200 rpm
If you wanna go 65mph in 4th gear with 35" tires you're running at 2550 rpm

With 5.29 gears:

If you wanna go 65mph in 4th gear with stock tires you're running at 4100 rpm
If you wanna go 65mph in 4th gear with 35" tires you're running at 3300 rpm

Like riding a bike: in a low gear it takes more cranks to get the tire to revolve but you don't have to crank as hard... in high gear you don't have to crank as many times but you gotta crank those pedals a lot harder. Your legs are the engine in your truck

Bama

Well if my question was how to regear and what gears to go with then your answer is great. However that was not my question at all. so thanks.

I did ask how it would affect my truck derockus offered a great answer and simplified it for me. Which was very helpful.

I asked is a v8 swap would be better and Yodafan and Cheez gave me some advice on that.

I appreciate the helpful people. I have been very nice and helped in every way that I could since I joined this forum. I was just looking for some helpful dialogue. If your sole purpose is to be rude then feel free to steer clear of anything I post. I don't understand why someone would go out of their way to bother other people. Hell Derockus is a Gator fan and he was nice to me!

snobdds

If you would have taken another 2 seconds to actually click on those links and read through them...you would quickly find your answer.

And...sorry, but I am not responsible for your feelings.

Bama

Don't you have something better to do with your time? Bye.

91 4Runner

Drop in a factory set of 4.88's. They come in some later models of 4Runners with a door code of G144. This way there is no need for set up, just swap the front differential and rear 3rd. The gearing won't be 100% correct but it will be close enough to not worry about it!

Next time search, there are 100's of threads on gearing, pretty much the same for any Toyota topic.

SPARKS89

iTrader: (1)

Your truck will have NO torque if you don't regear with 35's. All of your power will be lost on just turning the bigger tires. Play with the numbers on this and see what you can come up with: http://www.grimmjeeper.com/gears.html

It may be the same calculator that derockus was using, I'm not sure, but this way you can play with it yourself. Use this too: http://www.brian894x4.com/Gearratiosanddiffs.html

It'll help you find out exactly what you're starting with and help guide you to where you want your truck to end up. From the research I've done, if you're starting with 225/75/15 tires and 4.10 gears and you go to 35's with 5.29's you're almost dead on with the final ratio that's actually hitting the pavement (and your speedometer, too). The truck thinks it's still running stock tires and gears so you'll have your stock-equivalent power back, but with bigger tires.

Bama

Sparks and 91 that is some great info! I appreciate it greatly. I am thinking I might stick with the 31's now until I can afford to get it regeared and go to 35's all at once. Thank you!

snobdds

I think those links you posted are too much work for this dude, as the gear calculator was already linked in the one I posted. This guy needs to be spoon fed the information or it fly s over his head.

crawler85

I don't know how but my 85 4runner manual is pushing 35's with 4.11 gears. it isn't bog down on first gear and seems to run just fine.g.

Discombobulated

Orion22rte

I'm pondering if one had the r151 tranny(from turbo truck, if 35's and 4.10 would be bearable? I have 33's, 4.10s and it works great

Bama

That does seem pretty crazy. It does ok on inclines/climbs alright too? Or are we talking more along the lines of regular highway driving?

Discombobulated

I don't understand what world you guys are living in!!!!!!!!! I put 31's on my truck with 410's and it was a frickin slug!!!!! Sure it will work but bearable? I highly doubt it.

This thread was a facepalm from the very first post and I'm in agreement with snobdds,

SEARCH!!! Plenty of threads of plenty of people that put 35's on and hate it and regeared.

I think just because its in the newbie tech section hand fed info is ok, but on this subject I'm thinking its just the same as any other thread....... Lack of searching!!

K I feel better now.

bob200587

I have no words....

snobdds

When you don't know anything different, how would you know of anything better?