I've been searching through the forum and I have been unable to come up with any info about the little knob for the turn signal switch. My truck (1979) is missing the know on the turn signal stalk. All I can find are the whole assemblies online and I am a little surprised because the stalk on my indicator has threads where the original plastic threaded into. FJ40, FJ45, FJ55 Turn Signal - Dimmer Switch - OEM Has anyone sourced one of these before? Would anyone be able to get me the general dimensions for the plastic part? I have a buddy who wants to try 3D printing something that will work.