"now all you need is a grill on the front bumper. looks nice."
---I just put one in
A lot of guys say you can just use the epoxy that is already sealing them together, and that will be enough, but i bought some clear silicone sealer at walmart for like $3. You'll find it where they sell caulking and that sort of stuff. It doesn't shrink and it's watertight and pretty all-purpose...so i just laid a thin line of that around the seal on each one before heating them up and squeezing them together.