Recently had my front tires replaced (fronts were at 4) . Shop informed I would be needing rear tires as well soon so just went on ahead and got them replaced. I had the rr usrs lca installed with about 53k miles. Purchased the car with about 47k miles. Currently I’m at about 60k miles . I thought the rr usrs lca were supposed to help with inner tire wear ? Lincoln’s head was showing when I looked at the inner tire wear for my rears but the rest of the tire was good. Does the rr usrs lca slow down inner tire wear, does it really preserve tire somewhat , or this could be the way I drive ? Thanks for the help in advance

 

It is contingent on alignment. Could be your alignment. Sounds like both your front and rear alignment was out, which resulted in uneven wear. It also depends on quality of tires you have as the tire construction also can play a role in how the tires would wear. In the past, on my other car (Corolla XRS), put Continentat ExtremeContact DW and they were horrible with cupping and uneven wear. Replaced them with PSS tires and no uneven wear issues.

 

I'm trying to follow; you put LCA bushings up front but expected it to help rear tire wear?

Either way, now that you have fresh tires, get a good alignment. Not one of those "green and go places" one that makes precise adjustments and ensures things match left to right. Even lowered on Swift, my rears wore down evenly. Fronts have too many track days to get a good feel on wear, but it's always shoulder, not inner toe wear for sure.

 

This ^ You may have some alignment issues. The USRS doesn't fix that. It prevents lateral and Axial control arm movement responsible for changes in dynamic tow on your front tires. A proper alignment is still necessary. If after an alignment you still experience rear inner tire wear, you can install adjustable camber arms out back.

-Justin

 

Ok I’m following you guys now . I have contis dws 06 all season tires so I know it’s not the tire. I assumed the rr racing usrs were to prevent this and I thought they were for both front and rear. I see now all I need is an alignment. Proper one. Thanks

 

Next stop will be for a proper alignment then. I assumed the usrs would help with inner tire wear for both front and rear. I see not now. And if inner tire wear still is present I need to look at adjusting camber for rear even tire wear? A product that does that ??thanks for the help👍🏽

 

I think you missed what I wrote above. Without alignment, you cannot expect suspension components to magically keep the tire wear even. You must have alignment regardless of whether bushings prevent uneven wear or not.
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I comprehend. Alignment before anything is done and then reassess the situation from there to see if the rear inner tire wear is still present.

 

Just to be clear, the RR USRS bushings only help with FRONT inner tire wear, they have nothing to do with the rear.

but as already stated, get an alignment and go from there.