Have these 3 clips and I know they somehow hold the rear glass stainless trim on. My question is where exactly do they go as far as position and direction and are they necessary or can the standard clips suffice?? Thanks.

 

I haven't seen this type of clip. The rear glass on my 2 door sedan type uses #386 and the windshield modg uses 385.

 

If I remember correctly they were on the bottom tabs in the center. I dont even know what they are supposed to do but you see they will go over and slide on the round nailhead tabs. I think I wont be using them.