I agree with Bedlam--I would load it up and see what you have....I did that on the TC in my sig in 2016 and it was instantly obvious I needed something.....
My progression was:
1. Timbren's...did nothing, took them off.....
2. Upper and lower stableloads.....
3. Air bags (7500 lb bags).....
After the above, which I did over 5-6 trips and about 3K miles, I got it dialed in just fine.....That was 3 yrs ago, 30k miles, and all is still fine......Every rig is different depending on loading, total weight, etc....
One note: I did the homemade stableloads route.....A lot on the internet about it as well as the Lance Owners site........After 3 yrs/30K miles, they are still in place, doing the job and holding up well......Just a thought to save some money if necessary.....
