I'll say on the endS of the dog bone. The anti wear grease is supposedly given with the TA04 / TRF 414M series. It's a light grey and sticky grease. Put it on each surface subject to wear in your dogbones. Of course, you'll need to clean them sometimes (mainly to add some new grease).
I know some people say never put grease in your dogbones, but this one just works (and ROCKS).