Are there any transportation services that could get me from Gloucester gap to Davidson campground for a day hike?

Nope

I second uber

Uber it if you can.

Turns out there are not. We were able to get advice from folks at the hub. Who recommended getting a taxi or finding an individual that would drive you up there. Apparently Brevard does not have any Uber drivers.

No they are not !! Unless you call Uber !??