Duster wheel size with mini tub

That looks so cool. I would love to do that on my 74.
What rim size is that and tire size and backspace?
No need to mini tub for this look?
Any disadvantage to this big a tire?
Thanks
Richard

Richard to get a look like that you need to move your rear springs, it sounds easy but remember that your car is over 40 years old and if those springs have never had work done to them that can mean quite a few hours work...it can be a pain and then there is the mini tubs...if you don't do your own welding you can turn out spending more money that you want to. Basically it depends on the budget.