They are not much different in weight. I installed it myself using a floor jack by lowering the front of the camper down, then removed all but 2 bolts which let it pivot down. Set the leading edge of the kingpin area on the floor jack and pulled the last 2 bolts.

Put new one on floor jack on leading edge (standing vertical) and used the jack to position it, then jacked up into place and put in 2 bolts. pivoted up and installed remaining bolts.

After installed and torqued down, I put on the capture plate for the slider hitch.