Weird rubbing marks on inner front tires

Hey guys

I was out in the driveway yesterday and noticed some rubbing marks on my inner front tires, as if a UCA or something was in constant contact with a tire. See pictures. I had a good look but didn't see anything. I cut the wheels and still didn't notice anything touching. I have 1/2-3/4 clearance with my UCA but thats not wide enough to make that mark.

My rear tires show it. I'm heading to work now and am going to draw a line with chalk across those rubbed marks and see what happens.

My mods are listed in my sig. Any suggestions are appreciated!

 

Very strange. Do your after market wheels have the proper back spacing?

 

did you recently go through an auto car wash or oil change place? looks like guide bars could have made the marks, since its so equal on both tires.

 

Thanks for the replies. The wheels do have proper BSing. The Taco was listed as a model that these wheels would fit. The tires are only 265's so they aren't as wide as 285's obviously that would likely rub.

I haven't been through a car wash or garage.

I might have to try the jack test. I did put a chalk line through the rubbed area and after a few kms of city driving they appear to still be there.

Note that earlier I said my rear wheels showed it too...I meant they don't show it.

 

I had an F-150 that had similar marks on stock size tires. Never figured out why it was but it didn't look like a friction spot and it never seemed to get worse.

 

I find it odd that for the picture with Grabber in it, the rubbing sort of goes around the letters, especially on the '2'

 

x2

I had the same exact marks on the inside of my tires and I found absolutely nowhere these tires could have physically been running. I cleaned them up and they didn't come back for a while until I went to one of those drive-through car washes and there they were again.

 

Sure they aren't rubbing on the cab mounts?

I have 265/65/18's and they don't rub anywhere, but they are really close...You're are one size up from mine so I'm not surprised you are rubbing.

 

The chalk test worked. I did get a mark on the chalk. I'll have to check the cab mounts.

It is definitely not a car wash or garage. I haven't been in one since I put those tires and rims on for the season.

 

Silly question, but you never know... have you checked the tire pressure?

 

Do you feel or hear it rubbing? Esp when making a turn?

 

have you rotated the tires? that could explain why the rear tires are like that too

 

It is most likely rubbing on the Spindle or the Uca do to backspacing not being correct for that aftermarket rim! 1.25" wheel spacers will fix that

 

this was my thought. I think if you've driven around on pavement with low pressure, it could make these marks from your tires squatting

 

Tire pressure is good. No doubt there.

I typo'ed earlier...the rear tires don't show that same rubbing.

I'll have to tale a closer inspection or maybe even hook up the GoPro under the wheel well lol

Thanks guys

 

UCA rub, or cab mount rub.

 

i dont think there is any way for the cab mount to touch that part of the tire...Mine rubs on the outer edge of the tread, not the inside of the tire. And the UCA....i dont see how it could rub, unless it has constant contact. Doesn't the space in between the tire, and the uca stay the same no matter the position of the wheel up, or down while flexing? I think the UCA & spindle moves in sync with the tire/wheel during flex....if that makes sense? it does in my head, but i've been wrong about plenty of stuff in the past =P

 

suprised no one has mentioned your LCA. thats my guess

 

No way for that part of the tire to touch the LCA either. Unless he has deformed LCAs. LCAs with arms growing out of it or something.

 

Can you fit your finger between the tire and the UCA?