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I measured the rims that are on the car now. They are 11 in wide with a 6 1/4 backspace. So if I go with a 10 in wide rim with the same backspacing will the tires still fit in the wheelwells the same or will I have to change the backspacing because of a less wide rim?


Thanks,




A 10" wide rim with the same backspacing should in theory put the tire a bit closer to your leaf springs.




I thought the backspacing represents the leaf side of the rim. So a 10" rim with 5" BS would have the remaining 5" towards the quarter panel. A 7" rim with 5" backspace would be the same on the leaf spring side, but only 2" towards the quarter panel.




Yes, but a narrower rim with the same backspacing and the same tire width will shift over the bulge of the tire a bit to the inside. The tire stays centered on the rim no matter what.