"Please don't tell me to call a plumber. I'd rather rip it apart myself."?NOw there's an attitude for you. If the plate says Delta then the faucet is probalby Delta. But since the are three different models of Delta, and each has its own repair, from replacing parts to replacing the entire inside cartridge, and it often happens when a DIY'er trys to repair it that the handle section twists off the lower one, it is very possible that you will "just tear it out yourself".