Hey guys!!
I have a 1979 full size Bronco that was given to me by my dad. He always wanted to put 38's on it but never got the chance. He is unable to walk on his own now and I thought it would be cool to lift it and put those 38's on it now, so he can see it!
It's sitting stock now. Any idea how much lift I need for 38/15.0/15 ???

 

atleast a 6" lift, maybe a small body lift? I think most 6" lifts comes with everything you need. Leaf springs, new radius arms and drop brackets, extended brake lines.

Some serious regearing will be necessary for that size of a tires.

 

You'll be just fine with a 6" lift depending on the offset of the wheels you use.
Avoid any lift that comes with blocks for the rear, either go with a full spring lift of a rear shackle flip and 2" add a leaf. If you don't know what a shackle flip do some searching, it really is the best way to go for the rear.
You definitely want some new radius arms, you can get by with drop brackets but they are ugly IMO.