Stupid question. But did you remove BOTH screws? If you did remove both just tap a thin screwdriver or knife blade in and give it a pry or tap on it with a rubber mallet. Or both. It will separate
Yes, two screws removed. Thought there might of been another so used a mirror to double check

, that's how tight it was stuck together. Used a small rubber hammer because the locating pin was stuck. It came out of the hole but still can't get the two halves to separate enough for me to get at things. So back to the garage and try some more.