Haha! Fuck if I know! How do I find that out? Excuse the ignorance.3spd auto, or 4spd OD auto.
With the 3 speed automatic there is no OD so highway driving will be fine. Maybe great. I ran 33s thru a 5spd with 3.07s. I never used 5th gear, OD.
With the 4 speed automatic, 4th, OD will be useless. PERIOD.
But the issue with the automatic will be lift from a stop. Even a minor grade will be hard on the torque converter. You can compensate off road by always using 4LO. In which case, with the 3.07s you will think you are in a Mustang. You'll be able to hit 60mph in 4LO. So if you like fast forestry roads as I did, you'll love 3.07s and 33s.
But no doubt, you will need a new torque converter sooner than with 3.73s.