Since you did not mention what the three were I’m assuming you’re speaking of the suspension kit. Our 33IK came with the EZ-Flex suspension made by Dexter. It has performed very well and I just replaced it with the same kit. I’ve noticed how hard a road bump,feels in my TV but do not feel it on 5th wheel. I also have the Air Ride pin box and the Andersen hitch.
This kit comes complete with brass bushings and wet bolts. I don’t know your particular RV so not sure if 2 or 3 axle but they make both.
I am very happy with this setup.. https://smile.amazon.com/gp/product/...?ie=UTF8&psc=1