AUBURN HILLS, Mich. (AP) _ Jerome Williams had career-highs of 22 points and 13 rebounds off the bench to lead the Detroit Pistons to a 115-78 rout of the Philadelphia 76ers on Saturday.

The game came just two days after the 76ers traded Jerry Stackhouse and Eric Montross to the Pistons for Theo Ratliff and Aaron McKie. The Pistons certainly looked like they got the better of the trade this time as Stackhouse (20) and Montross (6) outscored Ratliff (8) and McKie (4) by 14 points. Montross also added a season-high 14 rebounds.

The game was Detroit's highest-scoring of the year, and the margin of victory was its biggest ever against the 76ers.

The Pistons led 51-44 at the half, then scored 31 points in the third quarter to expand their lead to 82-62 heading into the fourth quarter.

Detroit then removed any doubt by starting the fourth with a 13-2 run for a 95-64 lead. The Pistons led by as many as 38 down the stretch.

Grant Hill scored 18 and Lindsey Hunter had 17. Derrick Coleman led Philadelphia with 16.

Detroit got off to a horrendous start, making just two of its first 17 shots, but Philadelphia couldn't take advantage. The Pistons improved their shooting percentage to 19 percent by the end of the first quarter, but only trailed 20-16.

Notes: Dee Kantner was one of the three officials for Saturday's game. It was the first time that one of the NBA's two female referees had done a Pistons game. ... Piston forward Brian Williams left the game early in the second quarter with a strained groin muscle and did not return. ...Before Saturday, the 76ers worst loss was 94-74 to Chicago in the second game of the season. ... Saturday was the 25th anniversary of the Pistons' previous largest margin of victory over Philadelphia, a 141-113 victory at Cobo Hall on December 20, 1972.