The G114 had a terrible service record a few years back. One rv website had a sticky warning other members. Also lots of issues on NUWA rv website on the G114. I would think by now Goodyear may have fixed their issues.
I have six Sailun 16" S637 ST load G at 4400 lbs capacity on a 36' GN triaxle stock trailer. Great service with over 40k+ miles and going on 8 years.
You won't go wrong with the 17.5" Sailun S637 SP @ 4805 lbs capacity commercial grade steel ply carcass made for regional service truck/trailer/and rv trailers. With 16/32nds of tread depth their made for a long/high miles of service life.