Trucks & Trailers - Question on tire wear

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FishOn162

07-12-2012, 10:17 AM

Single axle trailer, 17' boat. One trailer tire, driver side cups on the outside only.

Any idea what causes this and how to fix?

Could it be a loose or worn hub?

I would think anything to do with the axle or spindles would cause problems to show on both sides.

Thanks!

DoubleO7

07-12-2012, 11:34 AM

I would expect wear on the inside of tire if it were a loose or worn hub.
A tire that is running "toe-in" would wear on the outside.

Torsion or spring suspenion ?

FishOn162

07-12-2012, 12:38 PM

Spring suspension.

billinstuart

07-12-2012, 03:32 PM

Cupping is usually a balance issue. Really loose wheel bearing can cause it. "Feathering" and wear inside/outside is an alignment issue. Could be a combination of several factors.

FishOn162

07-12-2012, 07:57 PM

Thanks! I'll snap a photo of the old tire and post tomorrow.

meborder

07-15-2012, 11:18 AM

on a truck, cupping would make you think the shocks were bad.

wondering if a spring bushing could be bad, causing some play in the suspenstion allowing some uncontrolled/undamped bouncing.

would be pretty easy to check, just jack the weight off the axle and see if you can get any movement out of the spring bushings.

just a thought.

Bamaskeetshooter

07-15-2012, 03:26 PM