I just purcahased a 92 Ext cab 4x4. It has had leaf helpers added to the rear, which likely raised it a bit and inadvertently would cause nose to drop a bit, I noticed it because the 235/75's rub the flare when turning hard. Upon further review, I discovered the front tires are tracking about 3" wider (1.5" per side) than the rear. No spacers and wheels appear to be the same size on all. Previous owner says no axle or suspension changes or mods, other than the helpers on rear. Is this normal for the ranger???

 

It is normal for that generation ranger.

 

I will bite...
You said: "the 235/75's rub the flare when turning hard"
What is the wheel diameter? That tire reference should look more like this:

235/75Rxx with "R" Indicating the wheel diameter at the bead.

Makanak

 

They are 235/75-15 . I put spring spacers on the front raised it about an inch and a half , but was enough to eliminate the tire rub. And I guess the front end does track wider than rear, so all is well.