Just ordered the BlueOx bar and baseplates for my new Tahoe. My Legendary XL2 has mud flaps behind the drive axle and the tag axle, but not all the way across the rear of the bus. Do most of you have the flap at the rear? Does it really make much of a difference?

Just wondering how much sand-blasting I can expect without one....kind of hate to get too many rock chips on the new Tahoe right away!