You won't find a good rear for a Titan or Armada in a junk yard. Unless it was hit and just brought in. With the Currie, you basically get everything, except the center part with the gears, (ring and pinion). You would have to buy that separate, and the gear ratio has to match the one ratio you took out. That is where the 2.94 and 3.36 numbers come in. Trying to find a Dana or Ford rear with those gears would be tough, so you would most likely have to buy new. Not cheap. Then the gears have to be set up properly when installed, someone whom does rear axles for a living. The Currie bolts right in then. Lots of extras besides the initial part. Factory setup would be cheaper overall and hopefully, somewhat improved from the original design. I would call another Nissan dealer for a second estimate if any are in your area. Maybe the ring or pinion gear is just bad but you won't know until it is taken apart. A transmission shop or a racing shop may be able to do the job cheaper(by only replacing exactly what is bad) if you just want it to run again then sell it quickly.
Seems lots of people are really pissed at Nissan for this problem.
"Lets face it, the Dana diff in our truck is weak, period. They should have put a better diff in but they didn't. After the 04-05 problems with the diff, they should have replaced it or fixed it. They didn't. The 07 and 08 Titans should have big, strong diffs capable of the 9500 pound rating, but they don't. It is a shame we are not talking about how great this truck drives, handles, how much power it has and how it is the best looking truck out there. But we are not. We are talking about exploding diffs. That is Nissans fault, period. Maybe one day they will smarten up and fix the problems instead of sticking their head in the sand. Maybe not?'
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