The Bears announced on May 24, 2013, that they would retire former tight end and head coach Mike Ditka's number 89 jersey at the Bears-Cowboys halftime ceremony. The number was the last to be retired by the organization, with team chairman George McCaskey stating, "If there is going to be a last one, there is no more appropriate one than 89." During the ceremony, players from the 1985 Bears congratulated Ditka through messages on the videoboard. Ditka concluded his speech by saying, "Thank you, thank you, thank you. Go Bears!" The two teams had split their meetings 2-2 since 2004, Dallas winning in 2004 and 2007, and Chicago winning in 2010 and 2012. Among the players the Bears had to contain is Cowboys running back DeMarco Murray, who averaged 5 yards per carry. The Bears had the worst-ranked rushing defense in the league with 153.6 yards allowed per game, but the Cowboys ranked last in rushing attempts with 249. ESPN Chicago's Michael C. Wright writes that the Bears could use its sixth-ranked passing offense to attack the Cowboys' 31st-ranked passing defense, which has allowed 294.9 yards per game. The Cowboys' defense also allowed a league-worst 422 yards per game. Dallas opened the game with a 12-play, 75-yard drive ending with Tony Romo's 2-yard touchdown pass to Dez Bryant. The Bears scored the final touchdown of the first quarter on Josh McCown's 4-yard pass to Earl Bennett, the result of a 78-yard drive. With 8:58 left in the first half, McCown scored on a 7-yard run to take the lead 14-7, which the Cowboys answered with Romo's 10-yard pass to Jason Witten. After Robbie Gould kicked a 27-yard field goal, the Bears scored again after McCown threw a 25-yard touchdown pass to Alshon Jeffery, who caught the ball over B. W. Webb in the back of the endzone with 0:17 left in the half. On the first drive of the third quarter, Gould kicked a 34-yard field goal, which was bolstered by Matt Fort&#233;'s 5-yard touchdown catch and Brandon Marshall scoring on a 2-point conversion to increase the score to 35-14. In the fourth quarter, Michael Bush scored on a 17-yard touchdown reception, and the Cowboys responded with a 9-yard touchdown catch by Cole Beasley. Gould eventually kicked a 23-yarder, while the Cowboys scored Joseph Randle's 1-yard run with six seconds to go. On the ensuing onside kick, the ball was recovered by Marshall, and McCown ran the clock out to seal the 45-28 win.
Question: How many more yards was Bush's touchdown reception compared to the cowboys touchdown by Beasly, in 4th quarter?
Answer: 8