This adapter allows you to bolt a mustang style one piece drive shaft to a Volvo Dana rear axle. The kit includes one adapter plate CNC machined from T6 aluminum and all necessary hardware. The kit is designed assuming you have or are doing a Ford T5 transmission swap and a Fox body 8.8 Mustang drive shaft. The correct drive shaft measures 45.75" on center form yoke to yoke. If using a 4 cylinder mustang drive shaft, you will have to remove the weight from the slip yoke. This is for 240s only.