Thanks for the help! And after comparing your measurements to mine, I found that all 4 corners were different. It looks like I have a cracked leaf in the left-rear. Down about 1-1/4". So that ruined any measurement in the front. To make matters worse, I measured the front tires, (P265/75/R16) from ground to axle-center, and got a 5/8" difference! BFG T/A Radials, same normal tread wear, same psi (45). Drove the truck around for a while to compensate for any "flat-spot" issues. Same measurement again!
I need to sort-out the rear-leaf issue first. Thinking I may just go with some new 2" lift springs on the front. The rear? Not so sure what to do. The ride is fantastic! I"d hate to stiffen it up with a helper spring. Any opinions?
The difference between genius and stupidity, is that genius has it's limits. A. Einstein