Black_JKU

not sure why but the tire is cupping and starting to have slight vibrations in the steering wheel due to the lugs being higher and lower throughout the tire's diameter.(i assume)
My alignment is perfect......no braking issues.
any suggestions on why only 1 tire would be experiencing this.

mods are:
2.5" RC spacer lift
stock sport shocks
35" x 12.5" tires

keithvegas

Improper air pressure? Is the cupping in the center of the tread? Too much air will wear the center faster, too little wears the outside. It could be a bad tire but inside or outside edge wear would indicate a camber issue. Bad ball joints or bent C would take it off camber.

Black_JKU

It's wearing on the center lugs... Every other lug is the one affected all the way around the tire..
I've seen cupping before but never so perfect on every other lug

cru9

I was told they call that chopping. Mine was doing it and I installed new shocks and tire started wearing even again.

backwoods

i installed a 1.5" Teraflex leveling kit on mine and then went on a 4000 miles Jeep Trip and noticed on the trip that both my front tires were starting to cup. I've had motorcycle tires do it but never a vehicle. I plan to go get mine balanced and aligned. I might have knocked a weight off while off roading. Also got to check the air. Too little air made it worse on the motorcycles. When I roll to a stop at a stop sign, I can feel every lug as it rolls.

Black_JKU

Issue appears to be fixed after increasing tire pressure from 35 lb to 44 lb.

All vibrations I had are Gone.

jarod5

I hope that works for mine

trail_creeper

I tried a couple different tire pressures on my TJ. Ended up changing the corresponding shock and the problem went away.

DCPGATOR

Was that pressure taken when tires were cold? or after driving for some time? I ask cause I'm having the same issue but both from tires. Shocks are new from RC with the lift. I have 35psi when i start in the morning, but by the time i get to work, its about 39-40psi.

jarod5

Took mine to 42psi and it's doing better.