Their scammers.

this scummer scammer sent an email answering my craigs list ad for a jeep transmission. It's a california number and I'm in NJ.

No way  is anyone going to pay the price plus shipping to Cal. he/she used  a slight variation of the usual Nigerian scumbag scammers message;

Still up for sale?! please let me know!
(408) 430-2563).. Email only

The email, address used is "Jessica Muncy" <jessica72muncy@gmail.com.
Note that It included a phone but said email only . What low life morons!

The person at this phone# contacted me about purchasing an item fron me on craigslist via email. Said they were vacationing in London but would send me money for item, deposit check in my bank account & then they would pick item up. And then today received urgent email saying rent check was mailed to me by mistake with my name on it & that when I receive such check I can deposit check in my bank account , keep what I need for item they want & send back difference & then they would get in touch with me about picking up item. What a brainsurgeon this person is.

If they sent it by US mail, take it straight to the local Postmaster.  Get the full headers or source file of all the emails printed out and take them, too.

A lot of them use FedEx or something to get by the mail fraud thing, so see if it really does come by mail.  That makes it a federal crime.

This a scam...