Charlie..mud flap, grass flap...what's the difference?? Just get a small mud flap and install it like that off the frame like the Bulletin says and voila' ...instant grass deflector and it does help prevent grass from coming up from the bottom between the grille screen and the radiator screen on the diesels...Down here, Texas way, where it gets a tad warm in the summer, my 782D will overheat quickly, if I don't prevent that clogging of the radiator screen. A roll of screen at the bottom of the grille between it and the radiator will also help. BTDT...
Myron