frame sag after C notch - how to correct the problem

[OBSMando]

asking if anyone knows how to fix this . I recently noticed that my bed was sagging in the middle it basically looks like it’s caving in and not straight . I have a 4/6 drop on my truck I noticed it right after I lowered it

 

[Nad_Yvalhosert]

The bed is sagging? What about the frame? The bed is bolted to the frame with 8 bolts, if the bed is bending out of position, I'd be more worried about the frame.
Did you bolt or weld the c-notch?
Can you remove the bed and check the frame with a level?
Is the bed sheetmetal rotted?

Can you give us any more info? Even pictures might be helpful. I cant see the truck through the internets...

 

[Hipster]

Your not providing a lot of information so I'm assuming you did the c notches yourself without out a lot of forethought to measurements or welding in some temporary bracing to keep things lined up and squared up while the frame was cut and notches installed???????? If the frame is sagging you have structural issues. If it's the floor sagging because it was left unsupported or otherwise unattached it's a different story. Be clear in your descriptions.

Some pictures of the frame work and welding will speak volumes more than words.

 

[OBSMando]

The bed is sagging? What about the frame? The bed is bolted to the frame with 8 bolts, if the bed is bending out of position, I'd be more worried about the frame.
Did you bolt or weld the c-notch?
Can you remove the bed and check the frame with a level?
Is the bed sheetmetal rotted?

Can you give us any more info? Even pictures might be helpful. I cant see the truck through the internets...

Frame looks good . The frame is bolted on Some people told me that I have to make my c notch stronger not sure though

 

[OBSMando]

Frame looks good . The c notch is bolted on Some people told me that I have to make my c notch stronger

 

[OBSMando]

Frame looks good . The frame is bolted on Some people told me that I have to make my c notch stronger not sure though

Frame is in good condition no rotting only surface rust

 

[Hipster]

The frame is bolted on Some people told me that I have to make my c notch stronger not sure though

Sounds like a good place to start.

 

[Dnytro]

If the frame is sagging at the notch, then that’s you issue. If just the bed floor sags where u cut the bed support out, that’s not as big as an issue

 

[618 Syndicate]

Frame should not sag after a notch. If it really is the frame you did your notch wrong.

 

[sewlow]

The frame must be supported properly before making that first cut.
Aftermarket notch or you fabbed?
Aftermarket notches usually don't need to be made stronger.
The Co.'s making them have a rep to protect, along with some liability concerns.
Most pre-fabbed notches are over-built for the requirements.

Pix = 1000 words.