does anyone know of a very inexpensive source for = the roof vent seal? 
SIGNED: LOW ON = CASH &
 EL NINO (BAD RAINS) ARE ATTACKING ME IN = CALIFORNIA !!!!!!
 
ALSO HOW OFTEN SHOULD I CHANGE THE METEL AND THE = PLASTIC FUEL FILTER ON 84 WESTY & WHY DOES IT HAVE 2 = FILTERS?