Yeah, $65 shipped is a deal.
The last 3rd I shipped cost me $52 Fedex to Idaho I think.
BostonDave, you actually don't want a "rear" like that one pictured because it has a Rotoflex flange.
You really just want 2 fronts, or a front and rear that has regular u-joint flanges.
A D90 has a regular driveshaft.
Some Discoverys had a Rotoflex rear shaft.
Hope that isn't confusing.
You could also check with some of the parts resellers here like Crown14/Joel, Will Tillery, Randy Williams....
.