Just had the GX aligned at NTB, then went across the street to Lowe's and took home a fair load of 8 concrete pavers. The ride was incredibly bouncy and uncomfortable. Not sure if this was the result of the heavy load or something that occurred during alignment. Anybody have a similar issue? Thanks.

 

Probably bouncing off the bump stops with the heavy load in there, if it's still loaded crawl under and see how much space between the rear axle and bump stops (just inboard of the rear tires).

 

The rear airbags are not actually shocks. They are where the springs would be in the truck if it had springs instead of airbags. Worn out rear shock absorbers that can't deal with the amount of force moving up and down due to the added load are more likely the culprit if the truck rides the same when you unload it.

 

The weight is making the blown shocks more noticeable.

 

TLDR: Yes this