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

Dantra said
Doing a rear-end swap.. The one going in is a 3.73 and I'm just not sure if I'm going to like that gear. It'll see a little bit of highway time but not alot.. car shows, occasional drive to work etc. Possibly Power Tour..

69 Dart with a 6.4 Hemi and a 904 lockup.. Just a driver and not a track car. I know a 904 LU isn't ideal, but it is what it is for this year. I did have it beefed up with new bands/reds/steels/4.2 etc. Tires are (will be) approx 25-26 tall. Looking at about 500hp when it's all said and done. I'll go 8 speed or 46RH next winter.. maybe.

I know there are all kinds of calculators and guys that can dazzle me with math but I'd really like to hear some real world stories before I go throwing money at 3.27s

Thanks Guys!

My Chev 1/2 truck has 3.73 gears and an OD trans. 16" wheels and 75 series tires. Cruised on the highway at about 1800 RPM in OD.
I don't know whether the extra complexity of the 8 spd is worth any benefit. Extra weight and size. Personnaly I would go with the 3.73 and next winter channge to the 46RH trans. 3.55 gears may be a good option also.
Most of the 4 spd auto OD transmissions seem to have the OD gear about .7:1. 3.73 × .7 gives about 2.6 final drive. Gives good and easy acceleration while cruising with a quiet and low RPM good for fuel economy.