I added a brush guard/bumper from Ranchhand. It weights ~350 lbs. When I hit a small bump going slow it bottoms out. Any ideas for a upgrade.

 

Tuftruck coil springs. I have the 7,500lb leveling coils on my 06 and my 2016. You can get these coils in standard height or 2-2.5" leveling. You will not bottom out with these coils, and they ride great. I use them to help with carrying a Lance camper.

I took off my OEM 6k lb plow prep coils and gave them to my buddy. His 2016 F350 SRW was bottoming out with the factory 5,600 lb coils his truck came with, and he has the OEM front bumper.

 

Just like skanjo said. He has those sweet icon shocks too! They are probably worth more than the springs?

 

LoL, yes they are!

 

I removed the 6,000lb snow plow prep springs from my 2011 w/6.2, and replaced them with 5,200lb springs. If you were closer, I would offer my 6,000 lb springs. I'm sure they will stop the sagging.