I've run into the same problem on those as well as the Rams. The lower bolt for the strut rusts solid inside the bushing. I have had some success with using a OTC ball joint/u-joint press to get them out. The opening in the press is just big enough for the bolt head to pass though. It takes some time pressing on it and then tighten up for it to work free. I will come out hard the whole way.
If that doesnt work your going to have to change the bushing. They're avalible form NAPA.
http://www.napaonline.com/Catalog/CatalogItemDetail.aspx?R=NCP2673738_0336013545
You should be able to change the bushing on the jeep with your press.
As for the ABS/TRAC light you probibly damaged on of the wheel speed sensors.