Appropriate Wheel Offset for 18" Wheels?

Good to know for the clearances on the front end. The GTS still needs a ton of metal work. But I have everything to make it a roller once I am ready.

Looking at 285/30 on the front and 315/30 on the rear.

On the rear, keeping the A Body 8-3/4, means I'll likely use 2.25 or 2.5 inch spacers to get the wheels out where I want them. The B body rear solves the issue, and even an 8.8 could make it interesting width wise.

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Side note, been following your build from the beginning (despite my joined date), really inspired my 75 Duster build over the years as I've copied many of the things you've done. Cool to know you're still on here and contributing to the boards.

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I should probably post my two A Bodies, the duster is a dastardly build that'll catch flack, but I'm making it up to the mopar gods with my GTS build.
Thank you!

For a 285 up front you'll definitely have to do some fender work, especially if you're going to be running lower (which I assume you are)

In the back, where are you trying to put the tires? Well outside the quarters? Comparing to 72BBswingers set up, which he had to do quarter work to clear, your set up with an A-body 8 3/4 would only leave about 5/8" more space to the quarter. Moving it 2.5" would put it well outside the quarter panel.

You should totally start a build thread for your cars, I'd love to see what you've done!