I've owned my truck since new and it is one assembled with the incorrect springs. After back and forth with three dealers in two states, and seeing some of the trouble (shocks/struts) people had after they got the new springs...I decided to wait until my original tires were decently worn before doing the spring swap... I planned to add the mopar 2" kit and get bigger tires. After they did the inspection the dealer finally ordered the replacement springs. I requested the mopar lift be added and but he needed additional time to calculate the labor for adding the 2" at the same time. A week later he quoted $1,600 just for the labor to install the kit at the same time they did the springs, stating that the UCAs had to be replaced and that takes a lot of time.
I went with a Rough Country 3.5" and 35" KO2s from a reputable local shop. After install my truck sits 1" lower in the rear, like others have mentioned in this thread. I went back to the dealer and asked if they could either swap rear springs or just sell me the rear springs. They said NO to both...even said they couldn't look up the correct part numbers for the rear springs. Thanks to the users here that did all the research early on and listed the shock part number chart...I ordered the rear shocks online and will have the local shop that did the lift swap them out.
RAMCARES - I love the truck but your service in the field really needs help...I paid out of pocket to correct a factory mistake.