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686 vs 684 or 784

R

Ross Bryner

New User
THANKS for Yesterday's Replies! I posted a question about later IH utility tractors; 50 to 70 horse (674 etc...74 series and 684 etc...84 series) AND recieved some great comments.

NOW I would like opinions as to what is a better, more durable tractor: the IH diesel 686 row-crop or the IH diesel 684 or 784 utility or utility row-crop ?

(And of course, I can include the 544, 656, 666 row-crops and the 584 and 684 utility or utility row-crop models as well; and the later Case-IH 85 and 95 series tractors.)

I purposely am not including the 884 because it has the 16 speed transmission like the 706, 766 and 786 (I don't want one of these).
 

The 884 is 16F/8R but it is NOT the same trans as the 706 etc. It is the same 8F/4R style box as the 684 and 784 plus a hi/lo unit.

The 684 and 784 may also be optioned with the 16F/8R.....

The "T/A" is different, the later 885s had an electric switch.

The 686 has the 10F/2R T/A trans which would in my opinion is less of a gear box, T/A freewheels in low doesn't it?

I'd take a 684 8F/4R over a T/A 10F/2R trans that dates back to the M.

If you are putting a loader on it....84 series wins, left hand inline F-R shift, reverse speed on par with same gear forward.
 
Hi, it depends what you plan to do with the tractor as which model to choose. We had 684 with 4 cyl D-239 engine set about 70 HP and a neighbour had a 656U with 6 cyl D282 set about 65HP. The 656 had a slight advantage on the forage harvester as it appeared to run the harvester better in heavy corn. But for loader and other general purpose work the 684 was a much handier tractor.

JimB
 
I have had experience with 666 gear drive, 656 gear drive, 686 gear drive, 544 Hydro, 544 gear drive Farmalls and one 895 (similar to 84 series). The 895 is not necessarily a bad tractor, but I prefer Farmalls.
 
I have a 784 & I really like it! It does everything I need it to (stacking & feeding round bales of hay, plowing snow, blading the driveway, etc.). It is a versatile tractor. It has the power when I need it while it is still compact to get around in the corrals & tight places. Runs strong, never had any major problems & has been very dependable. Don't think you can go wrong with a 784.
 
If you want a good tractor the 686 is a six cylinder and will out pull a 684 or 685 any time its also a lot heavier. If you want a loader tractor the 684 type of tractor is better ,they also come with a shutle shift. I have had all of them and i would take a 686 over any of the ones you asked about the 666 is the same tractor and the 656 is simular but older.
 
THANKS to all you folks for the replies and comments !

Thanks 495 man for educating me on the 884's transmission. I mistakenly thought It had the same 16F 4R trans. as the bigger IH tractors. That makes me feel alot better about considering an 884 (72 p.t.o. h.p. stock !) as well as the other 84 series.

Still, those big old 6 bangers in the 656, 666 and 686's just seem to lug right along and those series of row-crops are big tractors !

I'll just have to 'carefully' buy the best thing I can find for the money I will want to spend.

Thank Again !!
 
The 895 2WD row crop has a front axle not strong enough for carrying a loader without bending or breaking and the 2WD tractor with a loader is helpless on snow and ice unless like you have a round bale on the 3-point, as the fenders aren't adjustable and tire chains might not fit in them without hitting if you have tall row crop tires. I have paid for enough parts and labor on it that I can't recommend it highly, but old Farmalls aren't necessarily cheap to keep around any more either.
 

Q...if it's a row crop, then you should be able to move the tires out and let the chains clear (?) or does it have flat tops and 15.5 38's...
 
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