tire fit

Three questions: 1) what's the maximum rear tire width I can fit in the stock tubs? 2) what rim offset would I need to get that max width? 3) what flange-to-flange dimension is needed (if I'm cutting/re-splining a 9" to fit)? Thanks!

I recently bought my 1970 Nova. The guy I bought it from did not tell me much. He put new tires and cragers on it. They are 215/35/15. Long story short I found out this car had a brand new Detroit speed mini tub kit! Now I want to get rid of the funny small tires in the rear. Im going crazy...

Would the 17x7, 4.25" backspacing fit on a 1st gen stock suspension and what size tires?

Moving leaf spring mounts on 66 Can you move the front and rear leaf spring mounts inward, narrow the rearend and widen the inner wheel wheels to make room for wider tires on a 66. Would I want to? How close together can you put leaf springs so they will still do their job correctly?

What size front rims and tires are you running on your 1st gen?