Does anyone have that tool box cover/lid that goes under the suburban driver seat?
I have one that I thought was a lid but its about 1/4in short on both sides if centered over access hole. Its a bit longer from the battery lid. Is there something else that needs to be in the access hole for the lid to lock in place?

Any pictures out there of your toolbox access hole that you could provide here to compare??

Thanks
Javier