Thanks much !!

Mine is a different install i think. The mud guard has holes that match with the lower bars that swivel so you can adjust somewhat. they bolt on at the very end before the sway bar underneath the car.
The center pc. that goes through the very bottom grill is about 4" wide and bolts too the frame. I will take a better look at it and take some pics. I also got side steps that went on in 5 minutes. they say mercedes Benz but no stamp or #'s anywhere.