I have no idea what the cost is. I didn't think Larry did the horns himself. I thought he sent them out to someone but I could be wrong. I was talking to him one day (quite a while ago) and he made mention of being able to repair horns or get them repaired. I didn't have any that needed repairing at that time so I didn't ask him about cost. You'll have to call and ask him. I would be curious as to what the cost is though. I now have one extra 69 camaro horn that only works when it wants to, and then it sounds a little sick.
[This message has been edited by kurt6325 (edited 11-06-2002).]
Don't have those horns rebuilt without trying this! Just spray some Liquid Wrench in the horns and let them sit for about three days or so. Make sure that you rotate the horn so that the liquid follows the spiral to the inside. If you can't get liquid wrench (It's a liquid you spray on seized rusted bolts) use diesel fuel. Not WD40. Allow for this stuff to soak in well. I have resurected many rare horns this way. As long as the horn is not completely rotten or bent out of shape, this will work.