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39 wheel dimension

850 Views 3 Replies 3 Participants Last post by  kso
I am looking for some help. I’m getting ready to have a 2000 Corvette cradle narrowed to fit underneath my 1939 Chevy coupe. To figure out how much it needs to be narrowed. I need an outside dimension tire to tire that someone might have. Not sure how much room I need so tires don’t rub on the fenders. Thank you for any help.
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I have found 58" hub to hub is a good point to start. Making tires fit is a function of the rear width, wheel offset and of course tire size. I used a 76 Granada 8" that was 56" hub to hub, added 1" adapters to convert Ford to GM and the stock 15" rally wheels. The 36 - 39 chassis are essentially the same dimension.
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