HUB Stands to aid setup

synolimit

So just to be clear, you're all saying if you use these to align your car, putting on different size tires and wheels will not change the numbers? Even if say you swap wheels that are a few inches apart? My winters are like 40+ mm more inward than my summers. Just seems it would change doing an alignment say on winters, then install summers.

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13 370z-

BGTV8

Yep - the wheel hub face MUST mate parallel to the hub and the rim edges must similarly be parallel to the hub-face.

Change in offset is not going to change tracking (toe), nor can it change camber. Since caster is implied as a consequence of change in camber as the steering is rotated (from 20-deg in to 20-deg out), caster does not change either. What does change with offset and rim width can be the track (track is the distance between the centres of the tyre on the road).

Changing offset WILL change the scrub radius and the track width which can affect the way the car turns in ... especially if you put more track into the car with a move toward positive offset, the centre of the contact patch on the front outside tyre in a turn moves forward and changes the wheelbase on the side (by a few mm) - and the inverse is true on the other side at the front, at least for positive caster, but we are into the finer points of steering design here ... and that is another complete can of worms - or perhaps in your case, another "earnest" discussion