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MP&C · 04-10-2021, 08:03 AM

Likelihood is 100%. Looking at the second picture in your post #38, those rust holes are not from leaves in the drip rail, they are rusting from the inside-out. Over the years humidity has formed inside the truck as it sits in the sun with the windows up. When it cools at night this humidity becomes condensation on the bottom side of the roof skin, where it will pool and collect to the low areas once gravity helps out. What you have showing is normally a small percentage of the rust and pits that are still growing and will be breaking through in the next year or so. If you have priced your paint materials, then I'd say you fully understand how much cheaper this repair will be before paint goes on. If they reproduce a roof skin for your truck I'd say you have a prime candidate now. And it fixes the antenna hole..

For some insight, John has a similar repair he's doing right now on a 66 ford here:

http://www.67-72chevytrucks.com/vboa...=784498&page=7

….starting at post 164. This will give a good idea what lies in store. Where he reformed the lip, you shouldn't need to do so with a reproduction roof skin... And while things are opened up, fix everything that needs it..

04-10-2021, 08:03 AM	#40
MP&C Registered User Join Date: Jan 2013 Location: Leonardtown, MD Posts: 1,633	Re: Roof patch causing warp / oil canning Likelihood is 100%. Looking at the second picture in your post #38, those rust holes are not from leaves in the drip rail, they are rusting from the inside-out. Over the years humidity has formed inside the truck as it sits in the sun with the windows up. When it cools at night this humidity becomes condensation on the bottom side of the roof skin, where it will pool and collect to the low areas once gravity helps out. What you have showing is normally a small percentage of the rust and pits that are still growing and will be breaking through in the next year or so. If you have priced your paint materials, then I'd say you fully understand how much cheaper this repair will be before paint goes on. If they reproduce a roof skin for your truck I'd say you have a prime candidate now. And it fixes the antenna hole.. For some insight, John has a similar repair he's doing right now on a 66 ford here: http://www.67-72chevytrucks.com/vboa...=784498&page=7 ….starting at post 164. This will give a good idea what lies in store. Where he reformed the lip, you shouldn't need to do so with a reproduction roof skin... And while things are opened up, fix everything that needs it.. Last edited by MP&C; 04-10-2021 at 08:22 AM.