2000 Bravada, new shocks causing clanging noise

I just had a relative replace the front shocks and ball joints on my '00 Bravada.

Now the vehicle makes a periodic, loud clang on both sides, most often when turning or accelerating. To describe it: it sounds like a large spring letting loose. My "mechanic" thinks it might be something he didn't know about the SmartTrak system.

Any tips would be greatly appreciated!

Jack the front end up and look under - probably reinstalled something wrong or didn't tighten the shocks, ball joint bolts, brake caliper brackets, hubs are going, CVs were damaged, etc.