Powerflex PFR19-1920BLK Rear Subframe Front Bush InsertsPowerflex PFR19 1920BLK Rear Subframe Front Bush Inserts Part Number: PFR19 1920BLK Product Notes (if required): These inserts fit into the voiding of the original bush. For a full replacement bush use PFR19 1922 PFR19 1920 Rear Subframe Front Bush Inserts are an easy solutionto reducing excessive rear subframe movement. Both come supplied with a subframealignment insert. Size (if specified): N A