Shanna Moakler -- I'm Finally Erasing Travis From My Bod

Shanna Moakler is finally ready to scrub her Travis Barker tattoos off her body ... NINE YEARS after they split up -- and all it took was a few alleged death threats for her to pull the trigger.

Sources close to Moakler tell us she has an appointment next week at a prominent tattoo removal company to start the process. We're told Travis and Shanna's recent arrests for threatening to kill each other ... were the main reason she decided it was time for the change.

We're told she's also moved out of their house ... where they'd been living together on and off since divorcing.

Shanna has Travis' name inked on her wrist -- and his initials on her neck.