Ferrar would get to keep the couple’s cars: a 2014 Range Rover, 2015 Mercedes AMG and 2015 Mercedes GL 450.
Slash, 52, and Ferrar, 43, have two sons: London, 15, and Cash, 13.
The guitarist offered to give Ferrar primary physical custody, but asked to keep joint legal custody.
He also agreed to pay $39,000 per month in child support.
The children will also collect 1.8 percent of Slash’s income until the year 2036.
Slash and Ferrar have been married since 2001. Slash filed for divorce in 2014.