recentering print on bed

[fast204 0]

quick question, sorta. I converted my tronxy over to an e3d v6 clone extruder. I had to make a new x axis limit switch holder to accommodate the brackets and extruder. when testing it out I found that the prints are ok in y axis but off in the x axis by the amount I had to move the limit switch. I use repetier host/server to make firmware changes and cura for my slicer. would someone care to walk me through what values to change in the eeprom to correct this?  it is printing to the right of center on my bed. nothing else program wise was changed. just the limit switch location.