It all depends on what tranny you have. I run 37's with Yukon 5.38's. My RPM's at 70mph is right below 2400 RPM. If you have a manual, I'd run 5.13's with 37's. You have to take into consideration what tire size you ultimately want to run. I personally wouldn't go above 37's on a factory Dana 44 with seriously beefing up your axle. You can run a different gear set I'm the rear, but like the peeps above have said, DO NOT ENGAGE 4 WHEEL DRIVE!!!
07 Rescue Green Unlimited
Upcoming projects - Much needed TLC