860-960 transmission interchange

gofast12 · Jan 5, 2018

Will the transmission from a 960 work in an 860?

showcrop · Jan 5, 2018

Yes all three housings are the same between the two tractors.

gofast12 · Jan 6, 2018

Will those work in my select-o-speed rearend?

showcrop · Jan 6, 2018

(quoted from post at 23:44:59 01/05/18) Will those work in my select-o-speed rearend?

Are yo asking can you put the transmission of a 960 into a 871? If so, yes you can, and it bolts right up because the ends of the cases are the same. However, you need the rear axle of an 860 because the ring gear on a 960 is on the opposite side of the pinion gear from where it is on an 860. You need to swap the rear axle because of the difference in the PTO. The rear axle to an 860 should not be hard to come by. Are you sure that your SOS is that bad? Assuming that an SOS problem is the root problem here. There are many places to get them repaired.

gofast12 · Jan 6, 2018

Thank you for the help. I purchased a 4000 with a sos last spring. It used a little oil. I figured I could get by with it last summer and rebuild the engine over the winter. My problem with it is it runs away on my steep hills. The transmission is stamped 871 which explains my problem. I didn't know at the time that there was any differences in them. My great Nephews drive it and I tell them to stay off the slopes but I'm afraid one of them is going to get hurt on it if they get too close. I figure it would be better now for me to change this one to a 5 speed with live pto and in the next year or two to look up another 4000 with the correct sos to start with. This is the low profile like the 860 and 861. will my 4000 rear end work? I know there is differences where the left brake pedal crosses over.

Kirk-NJ · Jan 6, 2018

Your 871 trans has freewheeling gears. It should have slash
marks on the gear shifter Indicator which will tell you which
gear are freewheeling. If you don't have that than your shifter
quadardent may be off a later model.

showcrop · Jan 6, 2018

With the additional information, let me add that your SOS, like Kirk told you is an early "free wheeling" SOS transmission. Ford made a very good effort at getting all of those early ones changed out with later ones on a factory program soon after they came out, but of course there were many that got by. I have been involved with the old Fords in my recent life for twenty years, and just came across my first early SOS last year. I think that it would be prudent of you to get it swapped out or parted out.

Kirk-NJ · Jan 6, 2018

The DDC is better trans but just be stay in the non
freewheeling gears when going downhill and you should be ok.

Kirk

showcrop · Jan 6, 2018

(quoted from post at 15:53:49 01/06/18) The DDC is better trans but just be stay in the non
freewheeling gears when going downhill and you should be ok.

Kirk

I agree that he should be OK keeping it out of the free-wheeling gears going downhill. Great nephews, well maybe not so much. And living with the possible consequences: definitely not.

jr1983 · Jan 6, 2018

(quoted from post at 03:31:45 01/07/18)

(quoted from post at 15:53:49 01/06/18) The DDC is better trans but just be stay in the non
freewheeling gears when going downhill and you should be ok.

Kirk

Click to expand...

I agree that he should be OK keeping it out of the free-wheeling gears going downhill. Great nephews, well maybe not so much. And living with the possible consequences: definitely not.

I don't understand the concern. I grew up on a g900 Minneapolis. If the ta is in low it free wheels down hill. So does a Massey an IH and some Olivers. Its just a matter of proper operation of the machine. If the great nephews are not mature enough to operate it properly then either replace trans or replace tractor or whatever but its not the end of the world

Kirk-NJ · Jan 7, 2018

If your shifter indicator doesn't have the slash marks here's a page for the operating manual that tell which gears are costing and which are not. You can then take a fine marker and add the slash
marks on your gear shifter indicator so anyone operating will know the coasting gear and not use them going downhill.
<a href="https://imgur.com/Hy73dtw">

</a>

showcrop · Jan 7, 2018

(quoted from post at 20:11:34 01/06/18)

(quoted from post at 03:31:45 01/07/18)

(quoted from post at 15:53:49 01/06/18) The DDC is better trans but just be stay in the non
freewheeling gears when going downhill and you should be ok.

Kirk

Click to expand...

I agree that he should be OK keeping it out of the free-wheeling gears going downhill. Great nephews, well maybe not so much. And living with the possible consequences: definitely not.

Click to expand...

I don't understand the concern. I grew up on a g900 Minneapolis. If the ta is in low it free wheels down hill. So does a Massey an IH and some Olivers. Its just a matter of proper operation of the machine. If the great nephews are not mature enough to operate it properly then either replace trans or replace tractor or whatever but its not the end of the world

JR, read the OP again. He is not talking about the end of the world. He is only asking about feasibility of replacing the transmission, just as you suggest is the right thing to do.

Destroked 450 · Jan 7, 2018

My 62 881 still as the original trans with ORC
We don't use it much for farm work but did rake and ted hay with it last year due to a broken crank in the 4000SU.
I had a couple of young nephews operating it and was very stern about them only using 7th and 8th gear.
If we were still doing tilage like when growing up on dad's 850 I'd find myself using 5th and 6th a lot which are free wheeling gears.
That wouldn't be good when picking up the plows or cultivators at the end of a field headed down grade.

I'm going to try keeping this tractor all original but if DC parts would work the original case I'd consider that, otherwise it would get a 5 spd swap.

jr1983 · Jan 7, 2018

My point was not with the original post. I just feel that some of the responses were rather dramatic for the situation. If it was my tractor it wouldn't concerns me. I am a father so I'm not speaking from ignorance. Its not my tractor and he wants advise on replacing the trans because he feels it would be safer is perfectly fine as well. I'm just saying it was also not considered unsafe to several other brands. Its just a matter of proper operation age appropriate situations and owner intent. Whatever some one decides is perfectly fine as long as you keep the kids safe. Please don't feel like I'm trying to be a jerk or start a conflict because that is not my intent.

jr1983 · Jan 7, 2018

My point was not with the original post. I just feel that some of the responses were rather dramatic for the situation. If it was my tractor it wouldn't concerns me. I am a father so I'm not speaking from ignorance. Its not my tractor and he wants advise on replacing the trans because he feels it would be safer is perfectly fine as well. I'm just saying it was also not considered unsafe to several other brands. Its just a matter of proper operation age appropriate situations and owner intent. Whatever some one decides is perfectly fine as long as you keep the kids safe. Please don't feel like I'm trying to be a jerk or start a conflict because that is not my intent.

gofast12 · Jan 18, 2018

Thanks for all the help.

860-960 transmission interchange

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