Am I justified in my frustration?

I don’t want to say just yet. I’m still pretty pissed and would like to reserve that for when I’m a little calmer. Steve isn’t helping trying to defend this jerk.
If the axle comes loose it won’t be because it’s a good rebuildable core, it’ll be because I put in way more labor and time than should be necessary for a “rebuildable “ core. I’m doubtful the third member will be fine and know the pinion and ring gear are not useable.
I feel like outing this fool but really trying to be reserved. I have no proof he sells shitty parts all the time. This could be one **** up and he’s being prideful and being a condescending jerk and not taking any responsibility. I’m just being a jerk back.
He knows about this thread and that’s enough for me at the moment. Steve Wall has told him about it and I just want to make sure he knows that, while I did accept his $100, it’s not going to make me shut up about it. I’ve got more into this in labor and penetrating fluid than he gave me. And I only have one axle out so far.

When I’ve been really pissed and let go for the first time on someone, Ive noticed they can get really really defensive.

And then you end up with two really pissed off people.

Just my experience.