We had a second person help install the glass so we could get it as close to centered as possible the first time. Setting it on the cowl and tipping it back doesn't work. We laid it on parallel to the sealer. If our glass was off more than 1/8-inch we'd have to pull the windshield and butyl and start over.

With the windshield centered, we gently pressed the windshield into the butyl. Always press evenly with two hands at least 12 inches apart, this way you don't put too much pressure on the edge by the A-pillar and crack the glass. Also be sure not to reach into the cowl and pinch the glass to the cowl or you'll break it.

Here we softly laid the butyl sealer starting at the bottom center. We made sure not to stretch it. We then cut the end with a razor blade. There are small dips at the lower corners so we added tiny pieces under the sealer. Make sure the butyl is straight since you can still see the butyl after the exterior trim is installed.

We heated up the butyl and glass by using a hair dryer (you can also put the area in direct sunlight) so the butyl will be more pliable and compress easier.

The major difference in installing back glass is the lack of supports to adjust the height of the glass, so we cut the rubber block (included with our butyl) into two correctly sized blocks and put them in the window channel to support the glass.