For a 6k rated trailer axle like you have that has a 6 on 5-1/2 inch bolt pattern you'd want the Easy Grease Trailer Hub part # AKHD-655-6-EZ-K for a really easy replacement as it comes pre-greased and ready to install. view full answer...
It appears the SumoSprings Trailer Helper Springs w/ Line Relocation Bracket # SS26MV is the correct kit for your 2020 Forest River Stealth 2916G toy hauler travel trailer. This kit is for a single overslung(axle below leaf springs) axle you will need 2 of them for both axles. You will need to verify that the U-bolt plate on your Stealth is no more than 5-1/2" wide or 3/4" thick for the bracket to mount on your trailer. view full answer...