The drivetrain can be included in any front or rear suspensions.  Drivetrains are included so their motion can be studied, and also so that the loads can be applied into the suspension via the drivetrain to simulate the true vehicle performance.  The drivetrain includes a differential, and either Hookes joints or Constant Velocity joints where appropriate in the system.  Front-wheel drive, rear-wheel drive and all-wheel drive systems are represented.  A reduction style four-wheel drive transfer case is not included, but can be built manually in the MotionView interface.  Two different drivetrain systems are shown in the image below: