MerlintheMad
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^^^ What @RogueIV said: you're apparently doing what I used to do, reverse how offset works: think of a center line in the width of the wheel, and offset pushes more of the wheel toward the hub/brakes/suspension, i.e. the barrel of the wheel has less on the outside and more on the inside. (It is possible to have "negative offset", especially with widebody that uses a deep dish wheel where most of the barrel is beyond the spokes.) So, a big offset number means that the inner rim is getting closer to the hub/brakes/suspension, and the outer rim (assuming equal width - squared - all around) is looking more recessed into the wheel well (undesirable to most people, I believe, since recessed wheels lose the wider stance look).I should say the more important goal is fewer problems. Would I be better off just using the +35's in the front and +45 in the back?
That's why I was saying that you will want/need some spacers to push the rear wheels out toward the edge of the wheel well to look the same (flush or close to it) as the front wheels. In those pics I posted above, the 8.5 wide, 40 offset produces that look: a 35 offset would push the wheel 5mm further out; you may not want that, as it is getting to the point of directly under the wheel well edge, and therefore is bordering on "poke" - which, in my humble opinion, is asking for a banged wheel well edge and a ruined tire when cornering hard and steering around a tight twisty; all it would take is a dip or other irregularity in the surface to pop the tread into the wheel well. Poke is bad especially in front.