I do not have a Winnebago, but do have a 2000 Dutch Star gas with V-10. I changed the fan clutch on it in 2012 and without removing radiator. I did from under the chassis, used the fan clutch tool borrowed from O'Reilly, and only screw up or difficulty was trying to turn nut the wrong way. On line instructions stated that the hub nut is left hand thread. MINE IS NOT LH! I even looked at the replacement clutch and convinced myself it was LH thread. After many hours of struggle including the use of my Air Chisel, I quit. While in bed that night, it came to me that it had to have Right Hand threads. Next day I again looked at the new clutch and confirmed that the threads are in fact RH. 15 minutes later the hub was off. Since I had hammered so much on the hub, I decided to change the water pump as insurance in case I had caused damage to its bearings and seals.
I did have to do some reaching and had a small difficulty with the fan attachment bolts and nuts, but all was doable.
I am sure the Ford chassis is the same no matter the coach builder as far as the fan clutch and front supports
Good luck and thoroughly insure which direction to remove the hub.
