The small aileron to bellcrank pushrods are steel vs aluminum like the larger ones. I measured where the rivets needed to go and drilled holes using the drill press. Most of the drilling went just fine, but for some reason one portion of the threaded pushrod end was incredibly hard compared to everywhere else. I broke one drill bit and had to sharpen the second one 4 or 5 times before I finally got through.
The rivets used to pin these ends on are super long (4-12) and notorious for being difficult to set. I didn't even bother trying to do it with the gun and bucking bar and went straight to the C frame. That ended up working pretty well, except for the fact that I was short a couple of rivets and will have to order more to finish.
The rivets aren't all pretty, but the forces are completely in shear, so ugly or even over-driven shop heads doesn't really matter too much. The rivet just needs to stay in the hole.
