[comptiger5000]

For exactly that reason, I've considered taller gearing in my Jeep. If a gear-vendors OD weren't so expensive, I'd strongly consider one (although it would make my rear driveshaft pretty short). That 28% drop in rpm on the highway would be awesome.

I'd drop from 1760 rpm at 60mph to just under 1300. That would probably be a bit too low (1500 would be great), but would let me re-gear the axles from 3.73 to 4.10 for better performance when desired, and a better crawl ratio off-road.

With 4.10s in the axles, I'd be at 1930 rpm with the GV disengaged, and just under 1400 with it engaged. It would probably downshift on some hills, which it doesn't now, but the gains would still be well worth it. Plus, I'd have better ratio choices for towing (which I don't do much, but it's certainly capable), as 3rd in the tranny with the GV engaged would be right at 2000 rpm at 60 mph.