Tires Cupping
Elder User
Joined: Oct 2005
Posts: 555
Likes: 0
From: Cincinnati, Ohio
Originally Posted by gunfrk
Bad shocks crapped a set of Michellins for me. New shocks and a set of Centra-matic rings and all is very cool.
Cargo Master
Joined: Jun 2003
Posts: 3,292
Likes: 6
From: Ardenvoir, Washington
My original Cooper tires cupped badly and were noisey.. They were balanced with the proper air pressure. A couple of years ago i switched to michelins and no more cupping.. Did not change anything else..
Post Fiend
Joined: Feb 2006
Posts: 11,892
Likes: 2
From: Middle Tennessee
Originally Posted by whitesdford
Mine are wearing on the inside really bad. Thought shocks may be the culprit, but it looks as it may be a camber issue. How does one fix that? Is that a huge deal to fix?
Butt-Head
Joined: Apr 2004
Posts: 9,432
Likes: 2,919
From: Reed Point, MT
Originally Posted by Tenn01PSD350
No, not really if you have an alignment machine big enough to check these trucks. Only two here in this town. I believe the camber is preset at the factory and rarely changes, but if it needs changing, they use plates that you have to buy. Kinda like a shim. Another problem could be your toe setting. That is super easy to adjust but without the alignment equipment you have no idea what you are doing.
Pretty close......
The front axles on these trucks (the 4 wheel drive ones) are considered "monobeam". That is the technical term for solid front axle. If you need a camber adjustment and the ball joints (what pivot between the axle tubes and the knuckles) are not worn, then the ONLY way camber can change is if the axle tubes themselves are bent. If camber is off, either the ball joints are bad or the axle is bent.
Correction for this condition requires a bushing located in the hole for the upper ball joint on each side of the axle. The bushings use an offset, angled hole through the middle that locates the upper ball joint stud in a different location to change caster and camber.
Lead Driver
Joined: May 2007
Posts: 5,613
Likes: 9
From: Flagstaff, Arizona
once your tires have begun to cup...or any other bad wear pattern. It's pretty much impossible to eliminate the damage done already. They will continue to wear in the bad pattern started. Been told this by a couple different tire guys.......not salesmen trying to sell me more tires haha
Butt-Head
Joined: Apr 2004
Posts: 9,432
Likes: 2,919
From: Reed Point, MT
I agree with that too. The ONLY way to "un-cup" a set of tires is to enter burnout competitions with them.
Seen A LOT of bad tires (cord separation) cause cupping concerns. There's nothing one can do about a bad tire.
Seen A LOT of bad tires (cord separation) cause cupping concerns. There's nothing one can do about a bad tire.
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