Big difference between Equifax and Experian scores????

[glamchick]

Hi I pull my scores directly from Eq and Experian sites.  I have a EQ score of 655 and Exp score of 583.  I have compared all the totals of debt and inq I have no lates in the past 1.5 years and no collections or bankruptcies.

Do you know why the big difference? 

Thanks for any help.

[DaBears]

They use a scoring model of not FICO. Each CRA has its own model and can vary.