smcox1

So recently I noticed the inside of the front tires were starting to cup and now they have made the front end vibrate. What would cause this? I have done some research and many people say the shocks but I haven't found a thread on our obs f150's. Just for reference it is 4wd and has the quad shocks up front. Any help is greatly appreciated!!

digitaltrucker

is it a lifted truck?

smcox1

No it's stock height.

BLDTruth

It probably means your springs are sagging which causes the camber to go out of whack. I would take it to a shop and get an alignment profile.

smcox1

That's probably what I'll have to do. I do know when you hit a bump it's like you drove over a 6" curb that's how hard it hits but I feel like it's always rode like that.

Chris_1

iTrader: (1)

If your springs have sagged enough to wear on the inside edges, you should think about new springs. Then wear them in for a couple weeks before you get an alignment.

joe mcmillan

The 2002 f150 has torsion bars that are adjustable for the front suspension. No coil springs.
If the front end has sagged, the torsion bars can be adjusted to bring back to proper height.
The cupping of the front tires is most likely due to some worn and loose suspension parts. Either have someone or check the front end yourself.
The shocks being old and worn out may also cause the tire cupping.
Whatever you do, an alignment will be necessary after the other work is completed.

imhere2

My stock Goodyears cupped badly. My tire guy told me it was a combo of cheap/poorly constructed tires and me cornering like I still drove a car.

Lasertek3

"Cornering like a car" that would explain why my 2013 Raptor with 28,000 miles are cupping badly. Took in for wheel alignment and they said it was fine. Maybe I should slow down in corners...

smcox1

Thanks for the advice!

This isn't happening on my 2002 it's on my 95 crew cab

I've also heard this. I do drive it like I stole it LOL! But I'm not sure if that's what would do it. I'll have to checkout some reviews on these tires I have.