I wasn’t sure how to attach the defroster vents to the dash. I fount one clip on each vent. I search this site and found several posts about this, but most of the picture links were no longer functioning. I finally found a link to an Optional truck equipment manual that had a good picture. It shows the clip on one side, and a sheet metal screw on the other side pointing up through the dash. It appears the screw tip will get covered with the windshield trim. One of the pages states that #8 screws are used on both sides, but that may be for a later year. The holes in my dash are not so big. I picked up a couple #6 x 3/8” screws and the first one fit perfectly. I’ll install the other side after the windshield wiper linkage is in place. One of the cowl vent hinges had come off during dis-assembly. While cleaning and painting, I noticed manufacturing ID stamped on a couple of the cowl vent components. The hinge piece is stamped “Barth”, and the bracket is “Ternstedt”. I picked up a rivet that looked like a good fit for the hinge pivot. I put the pieces in place and begun hammering. I soon discovered the short throws of my hammer under the confines of the dash was not doing much to the rivet. I filed off the mushroomed part, and cut the rivet shorter. More upside down hammering and now it fits well.
