Hi Brad, I tried installing my small back glass on my '59 too. There's not much info on "how to" online. I also had a new windshield so feeling defeated with zero experience working against me, I called an old fellow at a local glass company who came to my house and we installed both glasses together.
One thing I was doing wrong was trying to install the back glass with the seal and locking bead already on it...NOPE.
This guy made it look easy and had it in place in no time.
Install seal to the Cab first, Rope-in the glass, install locking bead (special tool required). BAM! Less than 10 minutes.
Good luck Bolter Brother,
Jerry

1959 Chevy Apache 3200 Stepside
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