I was in the box of my truck and noticed a small gap between the floor and front of the wheel well. I can see light through it. Its just a couple of mm wide. Brought it up with the service dept and they said it was for drainage.
Anyone else have this gap?

 

pictures?

 

Manufacturers used to actually drill holes. Now Ford just leaves a gap for water to drain out.

 

Yes

 

I have it too. Since I had the bed Line-X'ed, it's much narrower, now.

 

Thanks for the replies. I might not have noticed drain holes or gaps in the bed of my old truck because I had a bed liner.
I am still not sold on drainage and will probably run a bead of seam sealer there. I have a tonneau cover and don’t carry much back there.

 

Yeah...unlike the trucks of yore, where typically there was a formed detent several places, typically near the front of the bed for drainage...now there's just a couple of gaps built in. Seal away if you want...it's YOUR truck after all, but you'll have a swimming pool in there in a worst-case scenario...even with a tonneau cover...

 

I've had a Truxedo roll up on my last 4 trucks. I always seal the bed, and have never had an issue with water intrusion. When installed properly, a minimal amount of water should make into the bed.

 

Most of the beds have gaps visible along the sides and around the wheel wells. You can seal those if you want because dust does come in through the gaps. Make sure to use the correct type caulk if you seal the gaps. Stay away from silicone caulks that have acetic acid because it will damage the aluminum. I used a urethane caulk for mine.
Don't seal along the front of the bed towards the cab. It is made with overlapping edges to block dirt but still allow water to drain along that edge.

 

So if one used standard silicone to seal the gaps (Painted Aluminum) and it's been there for 1 year, and do not see any corrosion, and certain the silicone is cured, would you recommend that the silicone be pulled off? or left alone. Asking for a friend