Uneven tire tread wear LR tire?

AstatenateZ

So update guys, I got my stock camber arms put back on. I was still at -4.5 and -4.3 in rear, completely stock everything except I still do have SPL camber bolts , just coilover drop. Pretty low. And so I got camber set at -3.5 in rear both sides. And -3.0 Front both sides.

Toe WAS WAY OUT!! I mean way out spec is like .16 and it was like 1.40 or something on both sides. So I got it set to .16 all around. Got green in toe all 4 corners. Camber is even -3 Front and -3.5 rear. And doesn’t look much different. Gonna be flipping tire Thursday when I’m off work. And ride on them until I order 2 new rear tires at beginning of next year. It was definitely a bad alignment caused by bad camber arm (Spherical bearing failure) I’ve contacted company to get a refund as they’re only 3 months old and failed. As well as stock camber arms are WAY less expensive, I don’t feel any difference in performance around corners. And I still have plenty of negative camber and good fitment in rear. So I’m a happy camper. Good alignment. Good specs for what I’m going for. And flipped to new side of tire. So back to good tread. That’ll last me rest of the year. I also did test while rear was up in The Air and my Nissan tech friend said the VLSD is just fine. Also since I put OE camber arms back in. I have no noise at all on small bumps. And much cheaper to replace when I need new camber arms / bushings.

Anyone know how long OEM camber arms bushings last?