Volvo 780 making popping noise when we turn hard right or left

I posted this in another thread too, I thought I was in the VOLVO thread but I wasn't.. Sorry.

I know there is another thread about this same thing but it is old and I don't know if anyone still reads it.
We have the same exact problem with our truck. We have a 2007 Volvo 780. My husband has been all under our truck checking everything out.. Nothing is loose.

We just had new king pins and bushings installed. Maybe 6 months ago. Just a couple weeks ago we had had it in the shop in Texas and had the whole front spring system replaced. We also had new airbags and leveling valves replaced.
we picked it up and went to try it out, When I turned right back into the dealership it popped again. The truck does ride better because the springs were worn out but evidently that was not what caused our problem. We have looked, pulled prodded on everything under out truck trying to make sure nothing was loose. The steering box, the motor mounts, anything my husband can think of .. we have checked. I have walked beside it while he was swerving the truck to see if I could hear where the popping is coming from. It sounds more from the front of truck

We drove it yesterday to see if it was still popping, (we are at home right now. ) and it is still doing it.. We went into an abandoned subdivision and rode around swerving from the left to the right.. It pops really loud when we swerve left or right. He took the shocks off of it and we are going to drive it just a bit to see if it pops without them to see if it may be the shocks. i know I can't run without shocks.. it's just to see if there is a problem with them. I think they were recently replaced also.

Does ANYONE have any suggestions?

 

We just put brand new springs under the truck. everything that had to do with springs are new..

 

It pops even when we are not hooked to our trainer. Bobtail and it does it.