I don't have aftermarket pivot shafts, just 2 sets of stock pivot shafts with stock nuts.
@72bluNblu I've seen your posts about tightening them without them being loaded by suspension and have actually tightened most of the suspension components except for the LCA's (due to this problem). You said you use an impact- do you use an air or electric impact? I have both but the strength of them is totally different, or does it not matter.