Narrow The Frame For Clearance, Part One.
While sitting in the shop one day, working on what was supposed to be a quick garage build, Steve told me the truck needed to be Z'd, and since we were going to be cutting the front frame clip off, we might as well narrow it a few inches to help stuff those 20-inch rims. Once the frame was stripped of the wires, brake lines, and the motor itself, it came out pretty quick and easy. Once it was out, Steve actually had it narrowed in less than 10 minutes, which was the easy part. Once the frame was narrowed, the motor mounts needed to be moved, in order to bolt the motor back in place. Also, in order to ensure we cleared the stock hood, we lowered the motor mounts. Check out what we did below.
1. We removed the motor and all other obstacles, including the suspension, and cut the clip off. Steve built two tube slides out of 1-3/4-inch x .120 seamless tubing and 1-1/2-inch x .120 tubing lying around in the shop. These tubes would keep the frame square. | 
2. He then tacked the tubes in the same spots on both sides of the frame. | 
3. Then, using 1-7/8-inch masking tape, we marked our cuts to remove 2 inches from the center of the frame. |