OK, full disclosure here.
As I've mentioned more than a few times, my engine's got about 40K miles now, after about nine years in the car. When it was built I was mostly concerned with crank, cam, cylinders, heads, carbs, (and cost) etc. — the major bits. I relied on the engine builder to install a decent linkage. My master mechanic set up the downlinks, set the angles, adjusted the lengths, and it's all run pretty smoove ever since.
These downlinks have never needed adjustment after the initial setup, don't drift out of 'true', the two sides are in nearly perfect synch, and all that is required for perfect harmony in my domain is an occasional cleaning of the idle jets, tweaking of the 'mixture' screws and an even less frequent idle stop adjustment. These 'adjustments' are usually a quarter turn or less. But again, the linkage itself never needs any tweaking.
Whenever discussions of heim joints come up, I've always assumed I don't have them and instead have whatever the low-priced alternative is that is standard nick on your basic hexbar linkage. Thing is, what I've got looks a lot like photos of gen-u-whine regulation heim joints.
So what exactly are these called, anyway?
And should I attribute my good fortune to clean living and kind thoughts towards my fellow man?
(Yes, I know, they're a bit shmutzy now and in need of some cleaning.)