The default Greasers were just normal Fiend-style raiders. I changed them to be more like real-life Greasers. That's pretty much it.

What it does:
-Adds a 'new' armor called Leather Jacket, literally just the Kings Outfit with the logo removed.
-Changes the two generic male Greasers to have pompadours, the generic female Greaser to have straight, short hair (closest to greaser hair as I could find for female characters) and Greasy Johnny himself to have the Elvis haircut and an eyepatch (because why not).
-Re-equips the Greasers with Leather Jackets and smaller weapons (knives and pistols, mostly).

Notes:
The Leather Jacket's texture could be better, I just copied bits of the rest of the jacket on the Kings Outfit and used them to cover the logo. Might improve it later, once I get better at texturing.

The Greasers are much easier to kill now because they have crap weapons. To be fair, though, they never really were much of a challenge.

Yeah, this basically makes them into the Kings with worse gear. I thought it was more fitting than them just being the Fiends with worse gear.

Credit to Bethesda for Fallout and the GECK.
Credit to Obsidian for New Vegas, the Kings Outfit, and the Freeside reputation icon.
Credit to the GIMP Development Team for making the program I used to poorly edit the Kings Outfit.