not that i know of but my 72 came out with 2 tank's under the bed 1 on each side so you can put them on i am going to have to put new caps on mine cause somone cut them off but i dont think the make a kit have you tried to replace the rubber hose and make sure the tank is sealed up good?
espesally at the top where people take them out and put them in they get kinda week and need to be sealed again?