side and rear emblems

[Mikey]

I'm sure this has been posted before, but I'm having trouble finding what I'm looking for with the search function..

I bought new emblems for hood sides and the rear bumper. My car is a 1991. the emblems have 2 posts on the back but did not come with any hardware, just double sided foam tape cut to the shape of the emblems.

What is the purpose of the two posts? Is there hardware to attach them from behind if I drill holes in the hood?
Is the adhesive sufficient so that I don't have to drill holes in the hood? (just cut the posts off?)

Can someone post or send me a photo of a later year car showing the inside of the hood where these attach?

And how about the rear emblem - any tips for removing the old one to install the new one?

Thanks!

Mike