So with the mount pad etc, how much of a lip does that create ?

I'm trying to figure out how big of a lip I want, then the BS and then have my rearend made....

It just depends on how much pad you require for the particular brake system you're running and we can tailor that and the lip for just the right look and fit for your car and your tastes.

That lip measures out about 5.5" but if you haven't had your rearend made yet, I would suggest ordering wheels with exactly the amount of lip you're after, mock them up in the car exactly where you want them and then measure between them to determine your rearend width. Either that or just take an exact amount from the stock width and factor it into what we use for stock backspacing and you'll be fine.