Ok, so what DOES bring the tire closer to the strut body? Strut rub is highly documented on this forum and others, to the point that years ago several companies were offering a "strut rub kit"--the main component of which was new upper strut mounts.Collapsing strut mounts will change camber, but it will NOT bring the tire any closer to the strut body.
this all day.The only way the tire can move closer to or farther from the strut body is by adjusting the camber where the knuckle bolts to the strut body.
Like I said earlier though, changing brands/model of tire can cause problems too all other things remaining the same. Not all tires are shaped or sized exactly the same. And if you go up a tire size you can most definitely run into strut rub issues.
If you have collapsed strut top bushings and try to do an alignment without fixing them you will have problems.
Strut rub is a real thing, but it is not caused by collapsed strut top bushings.
235 was the factory width for 18x8 wheels on the GTO. 245 is an easy increase of width that's still meant for an 8 inch wheel.As I understand it - 235s were stock on the Monaros, 245s on the GTO. And 04s were more prone to strut rub.
Pics from mine in 2008, at 10K mi or less, stock chromed 17s. Dealer said "that is normal" - funny, I thought the only part of the tire that Normally rubbed on anything was the Tread...
Friend & inactive club member reset & tightened the lower camber stop, and cured the problem.
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So My question was: 235s vs 245 - any experience running 4 of both sizes?