xcmountain80

As im not familiar with the power curve of the 22R I know my brother just went to 4.88's with 35's I have 33's and 4.10's and need 4.56's .


Aaron

elripster

This is not true. There are other advantages to the larger tire which will give it away.

- Larger contact patch on the ground.
- More clearance after airing down.
- A tire running at a lower PSI and therefore better conforming to the ground for more traction.
- Better shock absorbing characteristics.
- Tire lugs are typically spread farther apart which also improves off road traction.
- Louder on the road.

Trust, you'd know right away which truck you were in. I have ran 31's, 32's, and 33's. The differences on and off road were stark.

Frank

deSCHUTTER

is the inch of clearance worth the loss of power?

Mattabilly

Quick hijack, how about 32/10.5 with a 3.0 manual with stock 4.55s?

tc

Should be fine (assuming you have manual trans), but what tires come in 32x10.50? I REALLY don't see why people do 32's ... at least go to 33's and get some ground clearance benefit.

RustBucket

iTrader: (1)

All I know is that I'm going to go with some 33x9.5's to match my 4.88/5spd/22re setup. Once I get some cash.

There's a great tech article that people bring up from time to time that talks about how a narrower tire really allows for much better traction. Apparently the length of the contact patch is more important than the width. That would be a fascinating thing to study.

Mattabilly

My bad, I meant 32x11.5. This is a dd and I didn't want to go too big.

FredTJ

You obviously don't wheel in anything "big" where clearance is at a premimum ....






Fred

tc

You mean this one?
http://www.expeditionswest.com/resea...tion_rev1.html

Brad.

Really??? they will go 130mph??? I can definatly relate to the 70mph slight incline deal but ive never pushed it to top speed.

mt_goat

I didn't say it would go 130mph lol (at least not with the 3.slo engine in there) I said Toyota GEARED it to go 130 mph. I'm using a gearing calculator to estimate the top speed if the engine had the power to pull the truck to 130 mph.

Here's a good calculator:
http://www.grimmjeeper.com/gears.html

With the A340H tranny, 4.88 gearing, 31 inch tires the speed at 5000 rpms (still below redline BTW) would be 133 mph. Of course the ECU also has the speed limiter to cut fuel off at around 105 mph IIRC.

Its just a mistake IMHO that Toyota engineers put an OD gear in the 4 speed autos that is higher than 5th gear on the manuals but with one less gear available to get up to that gear. So as we regear our trucks for bigger tires why should we use the Toyota factory gearing as the "gold standard" for the way it should be? I corrected their mistake and loved the results.

Brad.

oh yeah I understand what your saying now... I am sooo tired of dealing with the auto tranny on the highway. I can hardly cruise up any incline without having to really floor it in 4th gear. and sometimes the cruise control can't handle doing 50 - 65 mph on a flat road without shifting out of overdrive, it kills me!!! im thinking of trying a manual swap but I won't be able to do the work myself (without help of someone who knows what thier doing). just don't know if its worth the trouble. thanks for clearing that up goat

mt_goat

You don't have to swap the auto out, just get the gearing set right.

Brad.

i think mine must have 4.88's right???? I really don't know, but I read somewhere that the auto 4runners of 93' era all came stock with 4.88's?
Where can I find out?

thanks dudes

FredTJ

IF they came with the 31" tire package.
Look at your codes on the label on the door jamb.
That'll tell you for sure.



Fred

Victor

I thought everyone's door jamb sticker mentioned 225/75r15. There was a long topic about that a while back. One way to see is check the size of your spare tire. Best way is to crack one of the diffs open but you can put a chalk line on a tire and the driveshaft. Count the driveshaft revs vs the tire to turn 1 rev.

FredTJ

There's more than just the tire size there.
It also has the tranny code and gear ratio (diffs).



Fred

Alex 400

From what i know about mine is, with the 1994 4wd, limited SR5 3.slow and a 5 speed, it came with 4.88's and 31' tires. I climbed under it when i was checking the brakes and did the chalk line test and i roughly got 4.88. The door sticker on these often didn't say that they came with 31/10.50, they just 225/75. The hoist for the spare on the 225/75 models is different then the 31/10.50 model. also the gas tank is bigger on the 31" models too.

Victor

True that Fred

mt_goat

I've never heard of a 5 speed coming from the factory with 4.88s, you sure about that? Maybe the PO changed them