The brewing tuner version of “The Honeymooners” has locked in a world preem stint at San Diego’s Old Globe in a run that will topline Michael McGrath.Thesp, who picked up the Tony earlier this year for his supporting turn in current Rialto musical “Nice Work If You Can Get It,” will play bus driver Ralph Kramden in the musical, to be directed and choreographed by Jerry Mitchell, also at the helm of incoming Broadway tuner “Kinky Boots.” No other casting has been set for the show, which has a book by Dusty Kay (“Entourage”) and Bill Nuss, music by Stephen Weiner and lyrics by Pete Mills. Weiner and Mills previously collaborated on the tuner “Iron Curtain,” which has been seen in Gotham in a couple of Off Broadway runs. The Old Globe production isn’t being called a pre-Broadway tryout, but the project has clear designs on the Rialto given its Main Stem-caliber creatives and a highly recognizable title. Based on the 1950s TV skein, the “Honeymooners” musical follows what happens to Ralph and his pal Ed — as well as their wives — when the two men win a jingle-writing contest. “Honeymooners” will open the 2013-14 season at the Old Globe, where the show runs Sept. 8-Oct. 27. Further offerings on the Old Globe slate remain to be set.