Not sure what you’re asking?Is there a retainer keeping the shackle “pins” in?
I wondered if that’s what you were talking about. Yeah it’s threaded. The threads stop about 1/4” from the top of that tube. It might get a jam nut before I crank everything down. Haven’t decided if it really needs one or not? Maybe a set screw?On the rear hanger of the rear spring, what keeps the johnny joint in the bracket on the frame?

Underwear???Looks good under there...
Haha!!!! Our kids have had these going for the last year... Aaron! Aaron! Aaron! WHAT??? Sucks.... And... Guess what? What? Chicken butt... Buncha punks!Lol
I literally just got our pastor with that one tonight while painting at the church.
Which flavor? The copper kind will match my interior better.And anti-sieze