Hi I was hoping someone could tell me if when in 2wd in an fj62 the front driveshaft still spins when driving. Also, when parked and in 2wd with the hubs unlocked, should the front drive shaft turn freely? My front drive shaft u joint has a chewy spot on it and I'm trying to figure out if this is the cause for a grinding noise when driving in 2wd with the hubs free.