I'm running 33's and have 4:10's also and I find it a good gear for a DD. "IF" you've got the money, you should think about Limited Slips or "selectable" Lockers. I'm running the Auburn High Performance (high bias) LS in the rear (which works
GREAT!!) and the Detroit TruTrac in the front. The TruTrac IS a Limited Slip (which means, sometimes both wheels pull together and sometimes they don't). If I had to do it over again, I'd buy the
Auburn ECTED unit. It's an Electric Locker with a plus, when it's OFF it's a "pre-loaded" LS and when it's ON it's a Locker! The best of both worlds. Check out their website...
http://www.auburngear.com/aftermarket/product_listing.aspx?category=8946f7ff-e4b5-4b07-b738-c6f9d7f93179Â Â Also read about the exchange program "D-REX"
http://www.auburngear.com/aftermarket/d-rex.aspx The ECTED is NOT cheap, but they are less expensive then an ARB Locker and you don't need air to run them.
  If anything, at least try to install the High Performance in the Rear, you'll be amazed where it'll take ya (off-road). Just my thoughts...
  Tattoo
  CAVEAT: running a locker
can cause axle breakage and other damage, so do your homework.