Help

Hey I've got a question. My engine tends to shudder a whole lot when starting (sometimes) I also hear an audible clunk or THunk sometimes when the normal engine simply starts as well as when accelerating, DEceleratting, braking, and accelerating on reverse. I know you may think, axles, but I recently replaced them twice because the first pair made my ABS turn on so I'm returning those (bad brand called "EMPI"), and these second ones seem to be working great (aftermarket SurTrak, the dealer has the original ones for about $600 each WAY too expensive) but I started noticing the clunk after 2 days. Notice: it is one single clunk not a clack clack clack when turning, no. It is only heard when accelerating, decelerating, braking, and accelerating on reverse; one single clunk. Can anyone help me, I've been searching a lot and narrowed down the possibilities to motor/Trans. Mounts. Notice: I've recently changed struts, springs, stabilizer bar, wheel bearings hubs, as well as the front axle shafts. Please help, I've been doing lots of diagnosing lately and I want to get this over with. I have a 2004 with 175,200 miles on it by the way!

 

The boots seems totally fine but the shafts made a vibration on the vehicle AFTER changing bearing hub assemblies and they made a clunk/ clank sound when turning right and left and accelerating.