2. Slide the 5” Hanger Clamp onto the outlet end of the 4” to 5” Extension Pipe. Install the hangers into the existing OEM rubber insulators. Refer to Figure 5. Figure 5 3. Install the Tail Pipe from the rear of the truck, over the axle and attach to the 4” to 5” Extension Pipe using the 5” Hanger Clamp. Slide the Tail Pipe hanger into the OEM rubber insulator. Refer to Figure 6. 4. Align the exhaust as required. Starting at the front of the exhaust, tighten all clamps and connections. 5.