33\'s with 2.73 gears - questions So my truck has the factory axles with 2.73 gearing according to the RPO codes. I have a 700R4 tranny, rebuilt last year and still under warranty. I'm running 33" Pro Comp M/T's and going offroad in some tough stuff this weekend. Lots of mud, some rocks, stuff like that. The thing I notice so far with highway driving is that if I try to run in OD it just slows down. It downshifts an awful lot so I've just been running it in drive for the most part. Then the RPM's seem kinda high. I hope to put in 4.10's next year but money limits me right now. I am wondering is running in Drive the best idea? Also what can I do to prolong the life of my wimpy axles? What should I avoid? Thanks very much! Leaving tomorrow for that big weekend. My rig's first time on the Pipeline. Fun!