Update:
I was cleaning/checking the buggy out when I noticed the shrink wrap on my motor wires looked strange. I took a closer look and the middle wires shrink wrap had split and was bascially falling off. It does not appear to have shorted because there were no burn marks on the endbell cover or wires and the buggy ran fine this weekend. I took off the rear endbell cover, added two layers of new shrink wrap and bolted the endbell back on. There is still a little gap between the wires and the holes in the endbell that can cause friction wear on the wires so I filled the gaps with hotglue. The hotglue also provides a better dust seal.