'94 F150 wheel center cap emblems??
 

I just received the new reproduction emblems that I bought for the center caps on my '94 F150.
These caps and emblems have been used on Ford trucks since at least the 70s and I have even had these emblems come of of the center caps in just removing and installing them.
But now I'm going to change out my emblems and would like to know how to remove the old ones and install the new ones, including a suggestion as to what to use for an adheasive. any thoughts?? Thanks!!!