Wheel Spacers?

Post a pic of your wheels....

 

If you can figure out your current backspacing, I'll lay out some specs for you on how far certain wheel specs will stick out farther than stock

 

I believe this says positive 10mm? Am I wrong?

 

Are yours the 15x6?

 

7" sorry.

 

If you did a 9" wide wheel with -12mm offset, that'd get you sticking out 2" farther than stock

 

And if I am looking at 17" wheels? What is the max size tire?

 

sorry 18"

 

That I'm not sure of since first gens are different than second gens

 

stock wheels are about 4.5" bs. going with a rim with less backspacing is doing the exact same as adding a wheel spacer of equal amount. It puts the tire in the exact same spot (assuming same width wheel) and exerts the same amount of stresses onto the front end components. Just think of the wheel spacer as becoming a part of the rim...

Its more than possible to fit a 33" tire without a lift by trimming/hammering. Actually even with a lift to properly clear the tire youd have to do the same amount of trimming. I always recommend taking the strut out all together and jacking up the tire to the bump stop because even with a lift the suspension will compress and articulate to the same points as stock.

I personally wouldnt go with a rim bigger than 17" on these trucks and no wider than 8". 18s on these trucks look huge. getting into the "rice" category.

 

I don't think this is entirely true, if you do the math, the force is changed from a shear force on the hub to a moment on the hub, which will change the load on the wheel bearing. I do agree that it's not enough of a change to cause any wear or break anything

 

best image i could find. note "A"

 

The hub sees the force at the interface of the wheel to hub, I don't agree with that analysis but I only briefly looked at it. I will run some SolidWorks analysis for us when I get a chance to double check this

 

The figure on the right will just decrease your bearing life (by how much who knows). I have no idea what the L10 life is from Toyota. Depending on the vector you also use different bearings (angular, rolling, ect.). However you're not shifting it THAT much. Generally people space them out only ~1.5". I wouldn't think about it that much as long as you're using a quality spacer.

 

I'm running 1.25 and 265/75/16 no rubbing but there are close to the factory mud flaps

 

Why is the force assumed at the center of the wheel when in reality it is applied at the interface?
I ran a simplified analysis, attached

 

Doesn't matter where the force is applied. The distance of "A" will always be the same. The only setup in chart with same bs is the 2" ones. Being off by 0.3psi is probably due to the material flexing.

 

"A" is the distance from the force to the hub, so it does matter where it is applied, in that diagram it is applied at the center of the wheel, which is incorrect

 

I think we are getting at the same thing tho bc a 2" bs sees the same stress that a 4.5"with 2.5" spacer sees, .3 psi is negligible they can be considered the same