If the ambient temperature of your workspace is cold, then this step may require that the top be warmed up so it will give a little. Bestop recommends that installation be performed in temperatures above 72 degrees. Below that temperature, the fabric may contract, making fitment difficult. We moved the Jeep outside into the warm sunshine for a couple hours before pulling down gently on each corner of the top at the rear bow and worked the plastic lip sewn into the bottom of each rear corner underneath and into the metal retaining lip on the outside of the belt rail along the edges of the rear corners of the Jeep’s tub. With the bottoms of the top’s rear corners securely in place, we then locked the spring-loaded pins on the door surrounds into the locking blocks on the side bows, closed the header latches to secure the front of the top to the windshield. The hook-and-loop fabric roll on the inside of the top was then wrapped and fastened around the center bow. We’ve heard of people using a heat gun or hair drier to warm up the fabric prior to installation, but the fabric can be damaged from too much heat.