Swivel ***** are also called CV joints, it depends on the year of your trk, I should have specified, sorry.
They are where your front wheels join the axle. DI's have them and I am not sure about DII's.
If your trk has a rubber boot over it then it is non servicable like on a front wheel drive car.
Otherwise they need to be lubed once in awhile.

 

Thanks for clearing that up. I guess I'll go check now.