Ok. If all the math is correct, here's the recap.....
3.27 = 2151 rpm (55 mph/4th gear)
1700 rpm (55 mph/5th gear)
2016 rpm (65 mph/5th gear)
3.45 = 2270 rpm (55 mph/4th gear)
1793 rpm (55 mph/5th gear)
2127 rpm (65 mph/5th gear)
It looks like it's roughly a 100 rpm difference in all situations. Now I need to figure out how this fits with the information from this thread.
https://ecomodder.com/forum/showthre...ons-36410.html
Things like pumping losses, high/low load driving, and peak efficiency. An uneducated guess tells me the 3.45 may actually be more efficient than the 3.27. But the technical stuff is a bit above my head. Still trying to learn from all the "teachers" here.