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Son & I are considering going to 20" row corn & am wondering if it is possible to convert a 1083 to 20" rows & add 4 more row units to make it a 12x20".

I have discuessed this with our CIH srvice manager & their top combine mechanic. Both say that 22" would be as close as we could get it. We measured a row unit & it looks like you could get it to 20" with 1" clearance by leaving the slip clutches off:~( Don't think I want to try that.

Combine man also said he didn't think the 1083 frame would support the extra weight.

Seems like I have read somewhere on the 'net of it being done. I would like to hear from any of you who has done this. What problems did you run into & how did you overcome them? Also, where did you get the poly for the snouts?

TIA,
boog
 

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Your dealer is correct. The 1000 series row units are too wide as I would not run without the row unit slip clutches either.
You could build the unit using old 800 series row units and it would work great.
Has your dealer tried to sell you a new 12 row 20" header as Case-IH factory build them.
Many have tried 20" here and have gone to 22" instead as they can still run tractors and implements with 18.4 tires on them and the tread setting is 80". Field trials have shown little to no difference on 20" vs 22" rows. Case-IH also makes a 22" 8 row header which is much lighter wieght wise and alot less money than the 12 row headers. By the way, 16 row 22" works on a 30ft 12 row 30" planter to convert.
 
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