During the time of "Nuevo Espana (Mexico)" era, The Real Audencia had political, civil jurisidiccion of several provinces such as Coahuila, Nayarit, Los California, Texas, Durango and I would assume Zacatecas, Aguascalientes and Jalisco.
We get to see catholic records online at familysearch.org
But are the civil records of Real Audencia of Guadalajara, Jalisco, Mexico viewable online? There is a website where you can type in search to look for something. But it doesn't give that much information. I think you have to go in person to the library or something in Guadalajara.