I'm also going for axles. That seems remarkably heavy for a PT. My 09 T&C Limited 4.0 is 4900lbs with a full tank. And I thought that was outrageous.
KOG - the real thing contributing to the weight is the steel, tools and chains that are needed in my driveaway business.
The picture above shows what is in the PT at all times + the steel hitch that is in front. I cut the frame off at the crossover plate and mounted C channel steel, multiple grade 8 bolts to the frame and then the front frame for the v hitch. If I hit anyone, I WILL hurt them. Ha! A semi-tractor side-swiped my previous PT and totaled the car - but I drive it home... the tractor, however, caught the front hitch and wiped out both outer dual tires and massacred the rimes - had to be towed. If you look closely, the hitch is still there and I used again on my present car. I saved the engine, tranny and lots of other things which have come in handy. View attachment 93277
Ah, a loaded weight. Most people just list a supposed curb weight. 5000lbs is still getting up there for a PT.