Fairly easy. Albeit time consuming. Take the unit out. See your Manual for removal of vent assy. A carpeted table and a how-to like this will help. The hardest part, on your nice truck, is not scratching the paint when removing and installing the unit. You will have to angle the vent assy to withdraw. Plenty of help here and the web. It's done all the time. I've only done 55-59 but it seems near the same. De-rivet, rivet, etc. you can bust out the glass over a garbage can if you want to. Plenty of soap and the proper glass tape. The glass will have to be gently pounded into place. Trim tape with sharp blade all around.
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