thats really odd that the dealer replaced the bar itself over just the bushings for the bar. If this is the case of the bushings being gone you will notice shrivled up peices of rubber at least small peices inside the bushing when removed from the bar. Like i said before you will need a rather thick grease to be put in there and you should be fine. Just make sure the grease you use will not react and swell up the rubber
1991 Nissan Pathfinder - trade in, 2005 Mazda 3 GX ty grey - Write off, 2010 Mazda 3 GT E sedan CWP- trade in, 2010 Speed 3 w/tech CWP - Up for sale (soon), 2007 Mazda 3 GS silver- motor swapped in to 2009 MS3 CWP that had blown engine, 2002 BMW 330ci silver- new winter ride, 2005 BMW M3- new toy