I gave my unit to a local Truck Service Center and below is what they said.
1. On the shocks, they said rear one had issues, threads not fitting etc, and they had to cut extra threads to make it work. Front shocks had no issues.
Item purchased:
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
2. On the steering stabilizer, they are saying it does not fit the 2021 BT 5210 at all.
Item purchased:
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
I am going to call Roadmaster RSSA to figure out which is correct part for the rig.
I am wondering if the service guys properly fixed the rear shocks.
Any help is appreciated!