Harmon, of Louisville, Ga., was a highly coveted recruit, signing with the Bulldogs in 2008 after a fierce recruiting battle with Clemson.
Harmon wanted to play defensive line and spent a season under the guidance of Rodney Garner.
He redshirted in 2008, and then made the switch to the offensive line.
Appearing in seven games over the past two seasons, Harmon worked his way into a chief backup role at right tackle exiting this past spring.
The progress was a good sign, considering Harmon was suspended for the Liberty Bowl last season due to academic reasons.
The transfer, coupled with Trinton Sturdivant's knee injury, leaves the Bulldogs paper-thin at the tackle position. Only current starters Cordy Glenn and Justin Anderson have an playing experience at the position.