Bonnet (hood) frame designs?

[Cobrakiller]

Have you had a look at how GM build the early model Corvettes? They have been building fiberglass bodies for over 60 years.Google C2 Corvette hood and see how they are made, 2 pieces top and bottom sections bonded together.Looking at your hood and front end I think that you will always have problems with sagging due to no support or reinforcement. Hope you can come up with a solution.

[PeterAllen]

Many thanks, 'I love youse all'.

I'm optimistic I've identified and corrected the problem. It was not the bonnet but the original Datsun guard mounting points. In its forty years the car appears to have had a few knocks and not always been rebuilt to original specs. I've been all over the car with plum bobs and lasers to ensure the suspension pick-up points are all okay but I didn't even consider the body mounting points. In my defence I can only say that for the last thirty years I've been the only male in the household so logic and rational analysis have slipped from my skill base.

So, with the aid of a block of wood and an Irish screwdriver I have repositioned the mounting points on the tops of the inner guards. The guard lips now sit lower and align with the bonnet.

Cobrakiller - The kit did came with a fibreglass frame glued to the underside of the bonnet (and a similar concept on the boot {trunk} lid). I discarded them both as the whole thing was way too heavy. The fibreglassing on this particular kit is very thick, 3-5mm, and there is no gelcoat so I tend to think it was some kind of prototype. I don't know if this thickness is typical for road cars (?) but with the racing cars I owned and worked on (when I was single and had a life) the fibreglass was half, or less, that thickness but with strategically placed lips and ribs.