Tank sizes on 337rls 2021

[Mikey1]

afternoon an anyone tell me the true size of my tanks? I emailed Grand Design, sent a diagram I can't figure out how to attach it. It shows two grey tanks at 40 and 35 gallons. I know there should be a total of 87 gallons combined. The black they are showing 35 gallons. It should be 47. The fresh they are showing at 54 Gallons it should be 80 gallons. I only wanted the sizes of the two grey tanks separately. Can anyone clear this up for? Thanks Mike!

[KDRunner]

I do know they changed the fresh water sizes a couple of times. Paperwork came with mine with my Vin number and it says I have the 80 gal fresh tank. Which I believe counts with the 7 gal hot water ( I'm not 100% sure on this). I put a gauge on hose and filled when empty and it overflows at 67 gallons.
I baffled also.

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[KDRunner]

Forgot also I have 337RLS 2021 manufactured in February

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