1968 Dart Fender mounted turn signal placement

Bought a set of bullet turn signals to mount on my '68 Dart. Does anyone have any good pictures or dimensions to properly mount them? I've looked at several pictures, but I'd like to get them as close as possible to the original location. It almost looks like the barrel of the signal may over hang the fender. Thanks.

Hope this helps

fender mounted turn signals

Thanks. Just what I was looking for!