Get the 16" flap with 6.5" clearance.
When the mud flap contacts the road, stones are kicked up, as normal dips and bumps in the road will cause the mud flap to contact the road.
Several of us have cut the bottom off our mud flaps for that very reason.
After 3 years of towing, I have no dings in my toad.
Adios, Dirk - '84 Real Lite Truck Camper, '86 Wilderness Cimarron TT, previously 4 years as a fulltimer in a '07 DSDP
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