If you mean the 'C' section braces up in the top centre of the rear fenders,a lot of guys with radically lowered trucks seem to do this often,and I haven't heard of any real problems.
AFAIK it's an easy thing to do,leaving just two small holes to fill.

Chevrolet obviously considered them necessary but I assume your truck will not be used in a commercial sense,i.e lugging heavy loads around any more....
I imagine you'll be OK.


1950 Chevy Advance Design 3100 in Scotland
In the Stovebolt Gallery
More pix on Flickr.
I've definately got this truck thing in my blood ... my DNA sequence has torque settings
"Of all the small nations of this earth,perhaps only the ancient Greeks surpass the Scots in their contribution to mankind" Winston Churchill.