Homemade Spring Offset kit

I would bet the 275 60s are on a Dart sport or Duster where there is more room than a hardtop Dart. I also think 245-60s are widest sure bet on a hardtop Dart.

Regarding the movement of the front spring hanger - doesn't everybody drill a hole in the frame to allow the welded nut on the hanger to fit inside the frame?

I had to enlarge an existing hole quite a bit , pretty heavily massage the frame rail and drive the front spring hanger in place ,it was and "is" more than 1/2 " offset , and aint coming out easily. I had to pull one to place an 1/8" shim in front of it to square my rear end, with 295x65`s on it , it has to be perfect . After being told that`s not what I did, I`m sure mine are freaks , hence the guy I bought them from couldn`t get them in his car . ????. If I spend money on something, I`m dam well going to use it , even if I have to modify it . Which is the case for a lot of parts now.
There was another guy on here that had a pair that was over 1/2" in the front too, but don't remember his handle .
After all this B.S. and "know it knowitallishness" , I`m sure dr.diffs are 1/2" , and mine are not the norm.