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i've seen it done a thousand times and i've seen them crack 999 times..i have a 70 chevy shortbed stepside..im changing to a 68 frt clip and would love to put a teardrop scoop on it ...but worried about crackin...would it help if i cut the hood out completely under the scoop then sanwhiched it with cloth ..and even run strips of cloth from the scoop onto the bottom of the hood from underneath??
 

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It could do , the cracking is usually a result of excessive flex in the bonnet itself , ie inner frames removed etc , try to keep as much of the original bonnet framing as you can , ie welding a "end" into any framing that is cut through around the opening , running the glass from inside of the scoop and blending into the underneath of the bonnet would more than likely help the cause with the added ridgity.

Cheers
Dale.
 

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I put one on a '55 chevy steel hood that never cracked! I know, you want to know how! It was one of those harwood bolt-on scoops with the rubber gasket around it! The car was black, and until you got real close, you couldn't tell!
 

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The best way is to get a fiberglass hood and bond it to that, steel to fiberglass will always crack eventually.
 
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