rear tail light bulb keeps blowing.

I had this problem as well. Inside the rear light assembly are plastic walls that surround the bulb. Apparently it was not glued in place properly so whenever we would hit a bump or go four-wheeling one of the walls would fall onto the bulb causing the bulb to burnout or break. I had to reach in and grab the plastic walls with needle-nose pliers to twist and break those free moving plastic pieces out. It was tough to do and you have to be careful, but once those walls/pieces were removed the bulbs no longer were a problem.

This is exactly what i was thinking my problem is,because i too have a clear piece of plastic loose inside the lens compartment ! In fact,there is a huge melt spot on it ! I was thinking that when it gets hot and rests against the buld,it causes it to blow ! However ! This morning, i started my jeep,the light turned on,then 30 seconds later blew out ! And it was very cold ! Do you think this still could be my pronlem ? Ive blown 5 bulbs in a week ! When the first one blew it kinda melted the bulb socket !