Cupping/Feathering & Recommend New Tires

[2Kchevy]

Hello.

2000 Silverado 1500 RCSB w/ ~123Kmi
I'm running 265/60/18 Yokohama G52s on 18x8 Centerline wheels

1st issue is cupping/feathering....
My tires have about 30Kmi and the edges of the front tires show signs of cupping or feathering. Front end has always seemed tight and does not pull to one side or the other down the highway. Last alignment was ~30Kmi ago when I got the new tires. Truck was also in a front-end accident years ago and the frame was pulled. I had the frame measured by another shop after the repairs and they said it was just slightly out of spec but they felt it was safe and would not cause any issues.

Any ideas on what may be causing the cupping?

Maybe the shocks/suspension?...if so, how often do the shocks have to be replaced if mostly street driven?

Can a slightly tweaked frame cause tire cupping?

2nd issue...
What size and brand does anyone recommend running on an 18x8 rim to get the best street traction?

I am thinking about 275/55/18 Kumho Ecsta STX.

Thanks.

[GraniteBlueNNBS]

Yokohama Advan ST 285/50/18 its the stickiest street tire in a 18" without going to a drag radial. How often do you rotate your tires. Are your wheel hubs tight? or do they need replacing?

[blacstar]

kinda of an open question. cupping could be caused by tires being out of balance, worn shocks, or just plain junk tires. feathering could be just a toe adjustment.
is this the first set of tires this happened to? how/where was the frame hit? how bad is the alignment? sometimes the factory spec cause tire wear. I personally just read my tire and adjust accordingly if its excessive.(or tell the guy/girl that is doing the alignment to change it)

[bangbangskeetskeet]

If youre looking for better tires in the same size range I recommend Michelin Lattitude Tours. Have them on my truck and they ride SO nice. I had 285/60/18 BFG gForce TA's and they rode like ass compared to the Michelins. Plus the Michelin hooks WAY better than the BFG's and will last a hell of a lot longer.

[2Kchevy]

Thanks for all the replies. To answer all the questions and ask a few more....

It has been 15K since I last rotated and it was 12K before then, so not as often as I thought.

The last set of tires I replaced showed a similar wear pattern around the outer edges.

As far as the hubs, what is a quick and dirty way to check if they are loose?

Will running 285s on a 8" wide rim be too tight of a fit or bulge too much where the edges may not grab as well?

Frame was hit on the front passenger side and slightly pushed the frame more towards the driver side.

Here are the actual specs for the frame and alignment. Let me know if you see something I am missing. The written comments are from me. Thx!

Frame -->
Alignment -->

[kerrige]

Are any of the belts on the tires thrown? I have seen that cause odd and premature wear. Don't get the kuhmos they are cheap for a reason and hated mine. I love my hankooks but the 18's are hard to come by in good sizes. The nittos are quite often compared to hankooks and have some raving fans out there.

[5speedsilverado]

Will running 285s on a 8" wide rim be too tight of a fit or bulge too much where the edges may not grab as well?

just mounted some 285/60 r17 on my 8" wide wheels yesterday, the fit well on the wheel and dont bulge much at all

[MrHorsepowerLSx]

That method works for both joints upper and lowers as well or for hubs that are sooo shot they wobble in all directions as soon as you touch them. You should also grab the wheel in a diagonal section and shaking the front down as well.... Either way both methods will work. And tell you if you have any worn suspension parts.
The pry bar method always yields me my best results Just sharing some helpful info, and thanks you for the correction