My manual says use sealer on ujoint bellows plus the clamp.(Cobra Drive)Some places I have talked to say they do use sealer and some don't.I am intersted in hearing from others that have replace their ujoint belows.Did you use sealer and clamp or just the clamp?Also does everyone replace the 6 drive nuts everytime they take the drive off?Thanks just wondered.What do you use for sealer on the bellows if you are using sealer?