Guys I need your help on this one... this has given me such a head ache...And is drving me crazy. When I turned 50 I guess I just lost my mind or got left behind..
I firmly believe the guys selling wheels today know nothing about applications and fit.... so I guess I will have to search for myself.

Does any one know where I can find the
offset for original wheels.
back space I know is 3 3/4 on my 6 lug X 5.5/139.7 wheels

All I wanted to do is get a more modern set of rims for my truck. And I wanted to be certain I had the right thing so I would not rub anything. I honestly believve I could learn to rebuild the motor easier...

signed
Totally exhausted