Here are the chords for "Dirt Road Diary" as played live by Luke Bryan. I tried to be as 
accurate as possible. Luke plays it without a capo and in standard tuning.

Intro:
G D C9 x2

G                           D                    C9
Me and daddy ride around all day shooting doves off a line in a Chevrolet.
G                                       D                                   C9
Old lab would jump out the back and fetch 'em up.
G                               D                      C9
We'd drive for miles and miles and never once hit blacktop or change the dial.
G                      D                               C9
One little country station was all there was.
Em7                D                                  C9
Checking gates, fixing fence and roads that's how my story goes.

Chorus:
Em7              D                         C9
If you want to know the real me, just turn the page in my dirt road diary.
Em7                D                     C9
It's right there for you to see, every kiss, every beer, every cotton field memory.
Em7                     D                          C9
Tan legs and some Dixie land delight, ridin' round, windows down on a summer night.
Em7           D                 C9 (strum once)
I was there, that was me. Its right here in my dirt road diary.

G D C9

G                       D                         C9
I remember when I turned sixteen; I got a license and some gasoline.
G                     D                                     C9
Ain't a curve or a straight away we didn't fly down.
G                               D                       C9
If wasn't the boys it was me and her by fire in a field or down by the river.
G                       D                               C9
Every inch of that county was sacred ground.
Em7                          D
Wish I knew where that old truck was.
C9
If it could talk it could tell on us.

Chorus:

Em7              D                         C9
If you want to know the real me, just turn the page in my dirt road diary.
Em7                D                     C9
It's right there for you to see, every kiss, every beer, every cotton field memory.
Em7                     D                          C9
Tan legs and some Dixie land delight, ridin' round, windows down on a summer night.
Em7           D                 C9
I was there, that was me. Its right here in my dirt road diary.

Bridge:
G               D                               C9
     It ain't a book underneath my bed;
Em7                         D                 C9
Just a dusty memory lane in my head.

G D C9 x2

Em7                     D                          C9
Tan legs and some Dixie land delight, ridin' round, windows down on a summer night.
Em7           D                 C9
I was there, that was me. Its right here in my dirt road diary.
Em7                    D                         C9 (strum once)
Just ride around this little town and you'll see how I wrote my dirt road diary.