A suspension for a motor vehicle having a hollow suspension member including first and second spaced apart sidewalls and a pivot pin. In the preferred embodiment, the pivot pin is a locking assembly that includes a first retainer partially insertable through a first window formed in the first sidewall and a second retainer partially insertable through a second window formed in the second side wall. The first retainer engages the second retainer to present a pivot that receives a pivot arm between the sidewalls.