Rear Tire Wear

Need to have the specs to see what's going on with rear toe. Has nothing to do with "excessive" tire pressure - this would cause the middle of the tire to wear. Without seeing the actual specs, the toe in the rear doesn't look proper. The tire indicates toe wear. If the thrust angle was equal, wouldn't be as much of a problem. Because the left tire is "toe out" and the right is "toe in", the rear of the vehicle is trying to follow a different line than the front so the tire is being "dragged" across the pavement. Id think if you fix that left rear toe, the condition should remedy itself. There are a few tricks in doing this if it's merely and alignment condition such as using shims between the mounting surface.

At home you can measure the front of the tire and rear; they should be the same distance. Obviously they are not in this case. A very thin strip of metal, such as an aluminum can, between the rear mounting point of the hub/axle could be thick enough to remedy the problem.

But, as stated by others, there are conditions other than alignment that can cause tire wear such as worn components.

 

the new tire is probably out of spec.

 

I think you are on to something.
Curious too if tire is mounted correctly and what is the tire and wheel size.
From the pics, it does look over inflated, but I am not a tire tech.

 

Tiers are LT 265/70/17 Load E , wheels 17" / 8.5 / 0 Offset All tires are are mounted with "Outsisde" facing out and wheel alignment was done 9/10/22

For worn components wouldnt this have shown up on the other tires i had on befor this?

Regards to toe angle im going to assume you want front and back to be as close to each other as possible?

 

True about worn components. I assume you swapped tires to see if it's the same? (eliminate bad tire)?

It's tracking isn't right. If it's not the tire then is fix that left rear toe.

 

How do you fix rear toe?

 

Not easy on a solid axle. First have to find the reason it's bad. It can be compensated with a shim. Best done by alignment tech. Who did the initial alignment? Rudy should be able to do it

 

The adjusted recommended psi is 37 for that size and load rating...just an fyi.

 

Where would you put the shim? Bad info.

 

Bad info? LOL. You ever had to compensate a solid rear axle on an alignment? Sorry OP, the Google Tech's have arrived. I'm out, good luck - you can PM me if you'd like more info.

 

Since it’s quick and easy to remove, I’d take the rear shock off on that side and see if it has the proper resistance (it should take a decent amount of force/leaning on it with your body weight to compress it). The damage on that tire looks to me like it might have been created by bouncing against the road when cornering, which would indicate a bad shock.

 

Im gonna swap out the tiers tomorrow if i can or Tusday.

Tire discounters did the alignment as thats where i bought the tiers from.

Thanks i have them at 35psi atm.

I might try do that when i get the chance.

 

That looks pretty fucking obvious to me that it has been rubbing on a fender flare. Look at the ridge worn into the tread block. It's not even all the way around so that tire run out a lot too.

Are you sure they were brand new when you got them?

 

Something interesting I just learned about the Baja Boss A/T(been eyeballing them for my next tire)...the center tread blocks are concave. Don't know how well that would do in a chalk test...
From what you dod post, am more apt to say it's something with your suspension.
What kind of lift you running?

 

The problem with the chalk test is to get the edge wear on the outside on a lot of 10 ply tires it would take almost 24psi, especially on the rear. It's not really scientific at all, but in this case it lets us look at the tread wear at slow speeds.

I truly think this is a tire issue. They are an awesome looking tire though. Did they replace the PTZ?

 

This is the kit i have https://eibach.com/us/1920/E80-82-069-01-22-TOYOTA-Tacoma-pro-truck-lift-system However i did also add a 1.5AAL in the rear

I do have another tire on the way but i dont want to put it on till im 100% sure its nothing els causing the problem

 

If it's a tire issue, what is the cause of the defect? Material inconsistency, bad vulcanization, bad ply binding...? There's a member who works at Falken; wish I could remember who, so I could @ him.

 

i hate to be the only PSI guy here but those settings may be true however the rear of your plastic bed tacoma without a load isnt pressing down hard enough to squish the tire so all tread blocks are making contact @ 37 psi. Personally I always run 2 psi less in the rear to compensate. Pickups are front heavy by design

 

What metric do you use to derive 2 psi worth of compensation? I will not accept dynamic latitudinal chalk test...maybe a static longitudinal halk test...

That's 148 lbs of load capacity from an axle that is inflated to 3,907 lbs...

Center of gravity is a mere 6" in front of center of a 128" wheel base. It's not as front heavy as one might think.

 

Gentlemen

Solid rear leaf spring axle.
The only adjustment is pinion angle shim.
As long as the leaf spring bolt is centered on the axle perch and the leaf springs are correct in length there is no issue.
Allignmemt is proof all is proper.

Chalk test showed no wear at outer edge
All is proper.

Some braking wear on one edge of tire tread.
All looks proper.

Conclusion:
OP parked on a crack tar strip which covered the tire in question making a rubber/petrochemical looking spooge on the outer edge of the tire.

Recomendation:
Clean spooge off tire with some sort of solvent.

Motor on.