been a while, I had a 67 cuda notch back and it lifted the rear 3 or 4 inches,without them my outer 10.5 slick would have hit the outer fender but cleared the upper pans very well . you have to use proper inset rims .
I have been thinking about lowering blocks for mine cause my butt is wayy up in the air on this car.
Keeping in mind it's not fully dressed out yet though.
I do really like it though.
I will see how it feels after she's road worthy, then see if i need to drop it down a bit.
I have a feeling that with the ss springs, and the 3" relocation, I may have some crappy handling on the street, but the cool factor is definitely there.
Some guys hate it, some guys love it.
I am running an A-body 8 3/4 rear and the wheels are 15x10 with a 7.5 inch backspace.
These wheels used to be on sanitylosts's dart from Moparts.