A500 and A518 Parasitic loss

3.23 X .69 = 2.22 final drive ratio.
A bit lower than the 2.76’s.
You could reduce tire size to a 26 inch as the 27.4’s are pretty tall. You would take off faster and have a more useable use for each gear with exceptable drive rpm in OD on the Hwy.
I would hate to replace the tires. Just bought the set of four new. Less than 500 miles ago.
So you can see my dilemma. In the long run the 999 lockup may end up being the better choice.