Those Running 3.73 And a TF w/ LockUp.. What's your highway Driving Like?

For what it's worth, here are the numbers I worked up when I was looking at an 8HP

8HP70 w/ 245/45R208HP70 w/ 275/35R18
1st4.694.69
2nd3.133.13
3rd2.12.1
4th1.671.67
5th1.291.29
6th11
7th0.840.84
8th0.670.67
Final Drive3.062.71
MPH
20 (1st)​
22452229
65 (8th)​
15621551
75 (8th)​
18021790

So functionally, an 8HP70 with a 2.71 rear gear and a 25.6" tire would feel about the same as a 2015-23 Challenger with the same trans and a 3.06 gear.

Here is the same comparison but with a 235/60R15 and a 3.08 gear:

8HP70 w/ 245/45R208HP70 w/ 235/60R15
1st4.694.69
2nd3.133.13
3rd2.12.1
4th1.671.67
5th1.291.29
6th11
7th0.840.84
8th0.670.67
Final Drive3.063.08
MPH
20 (1st)​
22452483
65 (8th)​
15621727
75 (8th)​
18021993