Sorry - should have said "sealant" - like thread compound. I prefer replace things like this, since generally I don't like doing the work twice, and often the leak is not at the threads but thru the switch/sender itself. Dave S --- In dmcnews@xxxx, billsfanmd@xxxx wrote: > Dave (and list) > Hate to be anal but this car does this to me....you mentioned a "new" > sender...can i use my existing one...you mentioned a new one..a new seal? > sender? thanks for your advice on this and everything else you write