Larger mud flaps

Does anybody make larger mud flaps that are a direct bolt on? Winter is nearly here and I want to keep as much salt off my truck as possible.

 

changing mud flaps is going to make zero difference when it comes to road salt exposure i.m.o. it gets on your truck when snow/ice melts and the tires kick up the spray. Your truck, and all vehicles infront of you create spray. your basically driving through saltwater mist. Best thing to do is treat the frame with a rust preventer and rinse the truck off whenever weather allows.