Answer based on context:

Coming off their bye week, the Titans flew to Arrowhead Stadium for a Week 7 duel with the Kansas City Chiefs. In the first quarter, Tennessee drew first blood as kicker Rob Bironas got a 49-yard field goal, along with RB LenDale White getting a 6-yard TD run. In the second quarter, the Titans increased their lead as White got a 2-yard TD run. In the third quarter, Tennessee continued its victory march as Bironas got a 46-yard field goal. In the fourth quarter, the Titans ripped it up as White got an 80-yard TD run. The Chiefs would get on the board as kicker Nick Novak nailed a 26-yard field goal, yet Tennessee replied with rookie RB Chris Johnson getting a 66-yard TD run. Kansas City ended the game's scoring with QB Tyler Thigpen getting a 14-yard TD run. In the game, Tennessee's overall ground game reached a franchise-best 332 yards.

How many yards longer was the longest touchdown compared to the shortest?
78