So winter is a pproaching and I just put my hardtop back on the jeep. Last weekend I did Cleghorn trail with some friends. It seems like when my top and doors are back on, the back end of the jeep seem real heavy. When on a steep hill climb, if there is any articulation involved, my front end would pop up as if it wants to roll backwards. I have done all the black diamond trails in the area with top and doors off without this problem happening. I have been reading up on the rear sping arch and collapse topic, as I have have a guess that this my be my problem too. I had this problem last winter, so I removed my rear seat, moved my tool box in front of the rear axle. This did not seem to help. I am not an agressive jeeper, I always take things slow and safe. Has anyone had this problem?