3 junkyards have told me otherwise, and Ford has 2 different part numbers...
I think I'll just bite the bullet and pick up these arms from an 05.
How much are they asking for the control arms? If you don't mind. I need both rear lowers and the cheapest new ones I have found are from Tasca, which are approx $220 a piece. If I can try and pick up some good used ones from a newer car cheaper, then I might go that route.
Update... Thanks Mark. Got the 05 arms installed tonight. Fixed my rear end noise, although now I need new sway bar bushings back there :/
No worries Apparently those are replaceable without lowering the subframe, according to a post on jaguarforums.com