1970 dart reared question

lamont 71duster said

I should of said this in my first post but I’m switching to big bolt axles and wanna buy some weld wheels but some people say a 15x8 will fit and some say only a 15x7 will fit just don’t know how to tell what will go under it and fit without problems but like I said someone said about the B body rearend

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Keep in mind a B axle is going to require a huge backspace if it's not shortened.
This means you can fit a big tire but your wheel center is going to be far to the outside.
Would you be ok with the wheels looking like that, or would you rather have a nice dish on the outside?

This is an example, as this wheel has 5.5 backspace, but is and 8 inch wheel.
Note how skinny it makes the wheel look from the outside.