Since our axlehousing hasn't arrived yet, we'll simply bolt the rear suspension parts to the frame itself. When the axlehousing shows up, all we have to do is slide it under the rear and bolt up the control arms, shocks, and the Panhard bar. The rear suspension is based on the late-model Mustang design, and again you can use donor parts from one of these Mustangs. But since we opted for the 3-Link Deluxe rear suspension package, which is a step above the stock Mustang four-link, we got these sweet tubular control arms to install. They slide right into place in the frame and attach with their included hardware. If you're buying donor parts, be sure to get the mounting bolts as well.