i did some searching before posting this, but now I am all confused which sealant to use for the timing cover gasket job.

first I found posts to use loctite 5900, but then I started finding information to use loctite 5910 and 5970. what are the differences between these 3 sealants? i'm sure either of them work, but I am wondering what the difference between the three are and which is easier to work with.

addition q: so if I've done my homework right, I only need to apply the sealant on the ends of the rubber u-shape gasket where it meets the cylinder head, on the bottom part in the corner of the cylinder head, and on the back of the timing cover where it meets the cylinder head?

i applied too much in my previous attempt by putting the black permatex stuff in the grooves and everywhere on the cover. :|