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9. We set up our four-link as follows: We wanted to achieve 10-inches of travel, so we first set it up at half travel, which was 5 inches. So, our half-travel mark was at 8-1/2 inches from the ground. (We were going to be running a 27-inch tall tire.) Second, we drew our crossmember, which was 2x3, and it was going to be placed about 1-1/4-inches from the ground to be level with the top of our frame. Next, we drew tab C, keeping in mind the size of our bars so they didn't touch the ground when laid out. Then, we drew tab D, which we needed to keep our bottom bar parallel to the ground. After that, we drew tab B with enough room for the bushing to clear the rearend. Then, we measured center to center of our bushings on tab D and B, ours was 9-3/4-inches. To find tab A, we subtracted 2 inches off of 9-3/4-inches. This gave us our Instant Center.