Carrier apparatus for drive-train component part assembly and vehicle assembly method

A vehicle assembly method comprising the steps of:

• causing a front retaining frame, transported along a first sub transport path, to retain a front drive-train component part assembly having a front suspension combined with an engine in advance;
• causing a rear retaining frame, transported along a second sub transport path, to retain a rear drive-train component part assembly having a rear suspension combined with a rear wheel axle in advance;
• coupling together the front retaining frame and the rear retaining frame, having the front drive-train component part assembly and the rear drive-train component part assembly retained thereby, by introducing the front and rear retaining frames onto a main transport path;
• transferring the front drive-train component part assembly and the rear drive-train component part assembly from the front retaining frame and the rear retaining frame to front and rear receiving members, respectively,
• causing the front receiving member and the rear receiving member, having the front drive-train component part assembly and the rear drive-train component part assembly received thereby, to face a vehicle body;
• and
• mounting the front drive-train component part assembly and the rear drive-train component part assembly to the vehicle body.