Vicki Gunvalson and Tamra Judge are reportedly feuding off-screen as much as they are feuding in front of the cameras. As the women prepare for the upcoming 12th season of "The Real Housewives of Orange County," which will not include former cast member Heather Dubrow, a source claims the longtime cast members are at odds over their paychecks.

Although the new season likely won't premiere for another couple of months, Radar Online told reader on April 10 that Gunvalson and Judge, who used to be close friends, were already at one another's throats.

According to the report, Judge is doing her best to get back in the good graces of her former friend, Gunvalson, as production on the new season continues, but so far, Gunvalson has reportedly not been interested in a reconciliation.

“Tamra knows that [Vicki Gunvalson] has some serious dirt on her, and she really wants to soothe things over so that Vicki does not go into full attack mode this year,” an insider close to production explained to the outlet.

Vicki Gunvalson's feud with Tamra Judge may stem from jealously

While Gunvalson and Judge have endured several ugly moments with one another on "The Real Housewives of orange county," their real dispute may be due to their differing salaries from Bravo TV.

As Radar Online explained, Gunvalson, who is the network's longest running housewife of all-time, is making a whopping $750,000 for season 12 while her co-star, Judge, who joined the show during season three, is getting just $600,000 for her own return.

“Tamra is of course upset that [Vicki Gunvalson] is getting paid so much more money than her,” the source said, adding that Judge believes the Bravo TV reality series should revolve around her story line completely.

Vicki Gunvalson had a falling out during 'RHOC' season 10

As fans of the show will recall, Gunvalson and Judge began to experience issues within their friendship during season 10 due to Gunvalson's loyalty to her former boyfriend Brooks Ayers.

During the season, many members of the cast questioned Ayers' claims of having been diagnosed with stage four cancer but all the while, Gunvalson chose to believe his statements and remained committed to Ayers until the end of the season.

To see more of Vicki Gunvalson, Tamra Judge and their co-stars, tune in to the 12th season of "The Real Housewives of Orange County," which is expected to premiere in the coming months on Bravo TV.