PASADENA, Calif. (AP) -- Johnathan Franklin had 162 yards in becoming No. 25 UCLA's career rushing leader, redshirt freshman Brett Hundley passed for 288 yards and three touchdowns, and the Bruins overwhelmed No. 24 Arizona 66-10 Saturday night to move into first place in the Pac-12 South.
Franklin, a 5-foot-11, 195-pound senior from Los Angeles, entered needing 21 yards to overtake Gaston Green, who gained 3,731 yards from 1984-87.
Franklin moved into the top spot with a 37-yard touchdown run on his third carry, capping a 75-yard, nine-play drive following the opening kickoff that put the Bruins (7-2, 4-2 Pac-12) ahead for good.
Franklin, who carried 24 times and scored twice, raised his career rushing total to 3,873 yards as the Bruins, off to their best start since 2005 under first-year coach Jim Mora, raced to a 42-3 halftime lead in snapping a five-game losing streak to the Wildcats (5-4, 2-4), who beat them 48-12 in Tucson last year.
The Bruins called a timeout after Franklin's record-breaking run to allow teammates to congratulate him. The crowd of 81,673 at the Rose Bowl joined in the celebration. Franklin came into the game as the country's seventh-leading rusher.
Hundley, who completed 16 straight passes at one stage, finished with 23 completions in 28 attempts without being intercepted.
The 66 points were the most scored by the Bruins since Oct. 4, 1997, when they beat Houston 66-10.
UCLA gained 371 yards of its 611 yards in the first half against a shaky Arizona defense, which came into the game ranked 110th out of 120 teams in total defense.
The Wildcats, ranked fourth nationally in total offense with a 553.6-yard average, gained just 83 of their 257 yards in the opening 30 minutes.
The win gave the Bruins a better record than crosstown rival Southern California through nine games for the first time since 2001. The 18th-ranked Trojans (6-3, 4-3) lost to No. 2 Oregon 62-51 earlier Saturday.
Arizona's Matt Scott, ranked second nationally in total offense at 386.1 yards per game, completed 15 of 25 passes for 124 yards before being shaken up and leaving the game midway through the third quarter. Scott was unable to finish his team's 39-36 upset of USC last weekend after being injured late in the game.
Ka'Deem Carey, the country's 12th-leading rusher, was held to 54 yards on 16 carries.
The Bruins took a 21-0 lead before Arizona got a first down, scoring on Franklin's record-setting run, a 6-yard keeper by Hundley seven plays after an 18-yard punt by Kyle Dugandzic gave UCLA the ball at the Wildcats 34-yard line, and a 17-yard pass from Hundley to Jordan Payton that finished an 85-yard drive.
David Allen recovered a muffed punt by Arizona's Richard Morrison at the Wildcats 39-yard line early in the second quarter, and Damien Thigpen scored on a 1-yard run three plays later to make it 28-0.
John Bonano's 28-yard field goal midway through the second period put Arizona on the scoreboard, but Franklin scored on a 2-yard run to cap a 75-yard, 11-play drive. A 36-yard punt return by Randall Goforth to the Arizona 32 set up a 1-yard TD pass from Hundley to Joseph Fauria with 14 seconds left before halftime.
Ka'imi Fairbairn's 25-yard field goal early in the third quarter made it 45-3 before the usually high-scoring Wildcats finally scored a touchdown on Carey's 2-yard run.
B.J. Denker, who relieved Scott, fumbled on his second play and Cassius Marsh recovered for the Bruins. Hundley threw a 28-yard scoring pass to Fauria on the next play to make it 52-10. Steven Manfro scored on a 14-yard run and Melvin Emesibe added a 1-yard plunge in the final period for UCLA.