Crap, I'm not 100% sure but I think you're correct.
I tried to look up the part numbers for the individual bushings, but it appears Jeep doesn't sell individual bushings, they only sell the control arms as a whole. See here:
http://www.wermopar.com/auto-parts/...e/front-suspension-cat/upper-control-arm-scat
However, it's only $33 for the entire upper control arm with both bushings already in it... So that's a pretty damn good deal. I'd rather just buy the entire control arm!