Get the hubs if you are in 2 wheel drive most of the time. Currently your flanges are spinning the axle shafts, the front differential, and the front drive shaft that goes to the transfer case. When you add the hubs and they are unlocked only the outer hub is spinning. I have them on all our 4 wheel drive vehicles from ford f250s in our fleet to all our Land Cruisers except the newer all wheel drive ones but I’ve even debated changing out ‘01 to the part time kit.