Can someone tell me if early 60's front guards fit straight onto a '68 beetle, or do they need to be altered. The lines look similar, but not fully sure...

yes they fit but you will have to open the bumper bracket holes

thats my 70's beetle with early guards...

cool, thanks guys

Yes,
they just all bolt on the same

You will need to cut the bumper bar bracket hole in the fender

early bumpers can be fitted easily with made up brackets..

Lee