SR5

I am curious to how the stock Toyota drive line handles 33.

Trustyrusty

Me too, but only if it hadn't been asked 54385967058971345890271 times. , sell your Toyota and go buy a Jeep, Toyota sucks anyways.

Dan.3

Oh my god. 33 x 12.5 are god awful. Its is probably the worst tire size ever created hense the reason why nobody uses them. You should really look into 37x13.5 those will definately fit under your truck requiring no mods at all

Team420

lol...you guys are rough.....

mt_goat

The stock Toyota drive line does quite well with just about any size tire. It's the rocks that take it out LOL.

dirtoyboy

The driveline is fine...there are people running huge tires on stock parts....

CVs is what you need to worry about...I wouldnt feel comfortable running larger than 33s on an IFS truck (that is actually wheeled)

SR5

is that the reason people get manual hubs on the front?

and sorry i didn't know people asked this question so frequentl

iamsuperbleeder

it's not the hubs you have to worry about...

it's the fact that you have 2 u-joint points that are weaker than a straight axle, leading to more possibility of failures when a lot of stress is put on them, ei bigger tires ( bigger than 33's I would safely say )...

SR5

oh ok
so then if i get a IFS Truss bar, that should help it
right?

iamsuperbleeder

well a truss doesn't strengthen the cv axles or the u-joints; all it does is strenthen the front end and keeps the lower rear control arm mounts from bending in, and possibly bending the frame when wheeling hard

so in short, a truss really wont help in that circumstance...

I've seen aftermarket CV's that claim to be stronger and more than likely are a little bit, but you can only do so much to strengthen a wooden toothpick and still make it work like it's suppose to if ya know what I mean

Basically, run'n 33's, I don't think you'll have any issues.

Now it later on if you decide to jump up to 36's or higher, you may want to consider either not wheeling very hard, or look into a SAS

abecedarian

lol at all these people...
if you know the limits of your truck, you won't break anything.
and IFS trucks tend to break axles in such a way that you can drive it home.... or so I've heard.

iamsuperbleeder

nah, just unlock the hub, put er back into 2wd, and yank that broken cv outta there and yer good to go to get er back home, lol

finding the limits of your truck is usually when you break stuff

Jay351

a 33x12.50" tire will cook though idler arms fast. If you wheel it, expect to have to rebuild it after every major wheeling trip..

abecedarian

that's what I was getting at, in a round-about-way.
The weakest part of IFS is the stub shaft off the outer CV joint, and when that breaks, you can still drive the truck, since that rides inside the wheel bearings.

Matt16

I'm surprised no one brough this one up sooner. The driveline will handle it just fine most likely, but the steering won't. Look into an idler arm brace or an aftermarket idler arm from Total Chaos.

https://www.yotatech.com/forums/f116...ilizer-140662/

mt_goat

After 11 years of running 33 x 12.50s I finally decided to put on an idler arm brace this summer:





I have used an extra (2nd) idler arm since 97, its in the middle of the relay arm (gold colored arm here)


I've never had any problem with my idler arm, I replaced the bushing once but it really didn't need it.

toyota-erik

Like a Birfield?

I dont think anyone would argue the fact that larger tires put more stress on almost everything. That being said, Know your limits. I think 33s will be fine on your rig but if your really worried about it try 32s and a rear locker.

MIKEMOKAS

Sorry to hijack.

goat, what are you running suspensoin wise? it looks sweet.

i see tublar upper arms, bj spacers, limiting straps, 4in drop brackets and a tublar steering link?

mt_goat

It's an old Superlift kit, they used to make a kit that replaced the UCAs. They quit making it about mid 90's sometime. It had an extra idler arm in the middle, seems to really help support both the idler arm and pitman arm.

MIKEMOKAS

and what abot the steering link? did the not raise the tie rod mounts at the wheels like the newer kits do?

ttyl