C-Notch Question

[Jamokey]

I will just give some background info. I am new to resto jobs. 2 yrs ago I bought a '67 C-10 SWB, it was 50% done. Engine and trany were done and the truck had been lowered. But the rest of the truck I got in pieces.

Since I bought it I had it painted and have slowly put it back together. I is finally finished and ready to drive. Since I have never insured it before I need an inspection done. Took it in and the inspector failed it on a number of things, however the most worisome to me is that he says the c-notch was not done properly. He said that the frame needs to be boxed around the c-notch which mine isnt.

It was just cut out and a piece of c shaped steel was welded in. Unfortunately I don't have picutures right now. Do you think this would be strong enough or do I need to box in the c-notch. The garage that did the inspection is a resto shop and I want to make sure thay are not trying to make some money on me. Also the rear suspension was converted to leaf spring instead of the stock coils.