The car does not come with a rearend but it does come with front suspension and your choice of a three or four link rearend. LK Motorsports is using a Ford 8.8 with a 3.55:1 rear gear from a '94-'95 SN95 Mustang. The first thing that the LKM guys did was drill holes in the ends of the frame so they could run the wiring inside. The body was then removed from the frame and the frame was sent out to powdercoat, or powderpaint as Lang calls it.
Source: LK Motorsports 310.779.2736 and Factory Five Racing 508.291.2443