Don't even consider and AJE, i'm not going into details, but their reasons for mine being a POS is that it's an older one.
So what, you screwed it up, give me another.
Got it from jegs a few years back. These projects don't happen overnight so i'm past the year you can return stuff.
They did make an effort to replace the pedestals to cure the problem, too bad it took 2 weeks to do what a chassis shop could do in 30 minutes. Oh, and their fix created other problems, includind issues with the new parts they sent me themselves.
I've seen problems with the rest of them too.
IMO, get the griggs or MM or don't bother.
Had my project not required a k member, i would not use an aftermarket one at all.