Help with backspacing on 71 Firebird...
Looking to run 18x10 rear 18x9 front. The rear is mini tubbed and running Ridetech level 2 all around. I need to figure out back spacing and offset. The tires look like they'll be 285/40/18 and 245/40/18. Any help would be appreciated.
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1971 Firebird
2017 SS
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