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Is there any bin extensions that can be added to a 7120 and still fold down easily ? About 280-290bu. seems to be my capacity. Like to have 350.
 

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carey makes one called the big topper goes on easy and allows you to fold the extension down still but now fold twice
 

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a few hours to install, just need to drill a bunch of holes in the stock ones, not sure if they make them for the new 88 yet
 

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They do make one for 88 series but the pieces to the bin extension are different for 5088,60-7088,7120,81-9120. Seem to add about 90bu.
 

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I've been thinking of adding a Crary Big Topper to my 7120. I'm confident the combine can handle the additional weight, but is there any chance problems could occur with the bubble up auger bringing clean grain into the tank? It will be pushing alot more material above it's traditional capacity. Will it be harder on the bearings and chain? Is this a valid concern? Any other potential problems?
 
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