With the 15 inch 255 60 R15 tires: Center Line wheel hub to fender 16" FRT 16.5" Rear.
Cab Height approx. 64.5 ".
Comparing ya'lls info above; I am somewhere around a 4-4.5" Drop front and back. I have only 1/2" Difference front to back with these tires which are same front and back.
With the BOSS Wheels / tire combo, gives me almost another 1.5" Difference front to back, giving overall 2" difference.
Gentlemen, thank you all for the great info! I really appreciate your help!
thanks
tt