Johnson, the No. 8 pick in the 2015 NBA Draft, is averaging 7.5 points and 3.6 rebounds in 20.0 minutes per game in his fourth pro season.
The Bucks and Maker's camp are actively working to find a new home for 2016's No. 10 overall draft pick.
The Bucks who now hold the best record in the National Basketball Association, have struggled to find minutes for the 21-year-old Maker.
Through 48 games played with the Pistons this year, a lot of them coming off the bench, Johnson has averaged 7.5 points and 3.6 rebounds per game, while shooting 38 per cent from the field. In last year's first-round playoff loss to Boston, Maker had 14 points, five rebounds and five blocks in a Game 3 win and eight points and five blocks in a Game 4 victory.
According to ESPN, Maker had told the Bucks he would prefer a trade to a team where he could have a larger role. The Sixers also traded forwards Wilson Chandler and Mike Muscala to the Clippers.
"We are thrilled to add such a talented player in Nikola Mirotic to our roster", said Bucks General Manager Jon Horst. Those picks are reportedly the Denver Nuggets' 2019 second-round pick, the Bucks' 2020 second-round pick, and the Washington Wizards' 2020 and 2021 second-round picks. Hood is a career 36.8 percent shooter from the 3-point line and is shooting 36.2 percent from deep this season.
He is a free agent this offseason.
The trade will give the 76ers a "Big Four" with Harris joining All-Stars Simmons, Joel Embiid and Jimmy Butler for a legitimate shot of not only claiming the Eastern Conference title, but talent to challenge Western Conference powers Golden State Warriors and Houston Rockets for the championship.