I replaced struts and shocks, but used the original springs. Is there a problem with your current springs?
If you go to Mopar Parts Online and use your VIN, you'll get the correct part numbers for everything.
I'm not noticing any obvious issue with suspension. Over time they just kind of slowly go and you don't realize how much until you change them out. My TH is sitting at 122kmiles, and the offroad miles have been few. Overall, I could not be happier with the performance of the suspension on or off road. It has done very well.
Still hungry for more ground clearance and I feel I will keep this TH for another 100k miles (knock on wood) since I have a lifetime wrap warranty. As long as I don't bust a 2" increase of lift, my warranty stays intact, but I can't say the same for my muffler (it has some dings for sure).