Single click/pop when coming to a stop

Hello, I have a 2014 4.6L Tundra I just bought about a month ago. 39,000 miles. Recently I've noticed that once in a while as I'm coming to a stop I'll hear a single click or pop sound that seems to be coming from under the floorboards. I can't locate exactly where it's coming from because it happens so infrequently. Maybe 4 or 5 times a week I hear it. Not a super alarming sound but I hear it enough that it just annoys me. Took it to the dealer and they said they think it's the hub caps but that doesn't make sense to me because i think it sounds like it's coming from underneath the truck, not the wheels. It's only happened when coming to a stop from going about 40mph+. It's just a single sound. Thanks for any ideas in advance

 

Yes it is

 

Okay I will try that as soon as I have a bit of time. If it was the suspension wouldn't I notice some sound when going over bumps? It's perfectly quiet over bumps and turns. It's just when coming to a stop