UPDATED 8-9: Excel sheet on R&P Gear Ratio x Tire Size x 4th & 5th Gears, with torque numbers.
I will convert it to a JPG for you know who tomorrow.
These torque numbers are for my rebuild as I see it in my DD.
I only calculated 31" tires and 33" tires, and for 4.10s, 4.56s, and 4.88s, and driving in 4th gear and 5th gear.
The numbers and math clearly confirm what R&P you should consider for maximizing best torque in the RPM range.
That sheet is about 4.5 hours of work on the computer!!
Gnarls.