2110 Diesel engine and 3000 8-speed transmission

Guys,

I have a 70's vintage 2110LCG (diesel) with a bad SOS transmission (go figure....) Looking to find an 8-speed transmission/rear-end to marry up with the still-strong engine. Can anyone confirm if a 2000 series diesel such as this will marry up with a transmission/rear end from a 3000 or 4000 series tractor? Or do I have to look at only 2000 series transmission/rear ends?

Also - Can I just replace the transmission or due to the SOS transmission, am I also required to swap out the rear end if I move to an 8-speed?

Any comments/suggestions would be welcome.

Thanks,

Tool.

Yes, a 3000 trans/rear end will bolt right up and work. So will a 4000's, but that is a bigger, heavier rear end with double reduction gearing - it takes more power to run, and will leave you with a tractor that feels underpowered.
Yes, you need the rear end as well as the transmission.

Any transmission from a 2/3000 or 26/3600 is a direct swap. Also a 3400 though those were often a 6X4 so the gear speeds aren't as desirable for ag/gp work.
The tranny from 4000 models with double reduction rear ends will have a significantly higher output ratio and would make your tractor very fast.
I parted out a 3000 with 8 speed/lpto that had once been an SOS model. They reused the rear end.
You will get into all kinds of questions about ring and pinion ratios on this.
A 2110 was taller geared than either a 2/3000 because they often had short rear tires. And an SOS model would have different ratio than a gear stick model. Others here can tell you more about those gear ratios.
There may be hyd pump lines to deal with if you swap rear ends. There is new and old style lines on those.
Always, always keep the flywheel and clutch with the tranny it was mated to. Any flywheel will bolt onto any 3 cylinder engine but not any flywheel will work with any transmission.
I'd say in a perfect world you would find a 2/3/26/36/3400 tractor that is a diesel and drop your engine in it.
Your diesel engine could replace a gas engine too but then you run into issues with the air filters being different, hood brackets, etc, etc. All of that stuff could be swapped over too but they are things to learn and think about.
My little sweetheart tractor was once a 3000 gasser with a straight up 4 speed.
It is now a diesel with 3600 8 sp tranny and rear end and shorty 2110 front axles.
Most everything was bolt-on swapping around but there were a few kinks in the mix.
If you ever wanted to discuss this stuff further send me your phone #. I'm always happy to yack about these things.

PS,
If you reused your rear end you would need the pto shaft and coupler and engage handle that came with the transmission too.

A lot of the 4000's are lacking the sockets for the radius rods.

Sorry for the distraction but there is a point to this madness per your comment about SOS vs stick and rear end gear ratio's. One of my rent-a-wrecks over the years was a '64 Rambler American 4 door station wagon with a V8, stick. Really a nice car for what it was.

One day I was coming home from work and this low level roaring noise started following me (about 30 mph at the time) and as I continued down the road it just grew in intensity.....didn't have any idea as to it's origin and had to be me as nobody else was on the road and it was desolate.

Pulled into a service station at the first opportunity and in short the rear end had dried out and I had a burned out differential. Being what it was a trip to the junk yard was in order. Found a rear end and put it in.

First trip out, in town, I could wind out to 40ish mph in 1st and in 2nd there was no limit....it just kept going. Apparently I got a rear from an auto tranny built Rambler! Sooooo there is something to be considered there.

However. Alexander's (Ford) Tractor Parts, in Winnsboro, East Texas, has been redoing Ford tractors for 40+ years. I was in there years ago and they had an update kit for an SOS tractor all packaged up on a pallet for shipment. Cost was $1750 as I recall as I had an SOS at the time and was worried about a potential failure and wanted straight gears at the time. The kit had everything you needed to make the change. I have no idea as to what specifically it was for or what you did about any gear ratio variations.

This will get you there: https://www.fastline.com/dealers/alexanders-tractor-parts-winnsboro-texas/ea8ab568-5d5b-4b03-b4f6-56a79274a952.aspx

Couldn't find the ratios for the 2110. The 2000 and 3000 share a 6.166:1 ratio for the 6- and 8-speeds, and a 6.67:1 for the Select-O-Speed. The 4000, with its double-reduction rear end has a 15.75:1 for the 8-speed and 30.01:1 for the Select-O-Speed.

2-3000 SOS had 6.67 gears.
2-3000 4-6-8 spds trans had 6.16 gears.
2110, 4110 and a few 2-3000's used 5.12 ratio gears.
I've seen only a couple of 3000's with 5.12's, they'll run nearly 30 mph in high gear.
4000 with 8 spd had 3.50 gears
4000 with SOS trans had 6.67 gears
planetary reduction for 4000 lowered the overall ratios even more.

Bingo.......your comment about Planetary Gears: I have a 2000, 3000 and newly purchased 3910. 2 and 3 have bull gears but the 3910 has planetary
and wet brakes. Is there a reason for the PGears with the wet brake, or were PGs just to change the gear ratio or, in short, why did Ford do that? Any
Idea?

Thanks,
Mark

Using the planetaries allowed much more power to be transferred than could be through a single reduction differential. They added it to later, smaller models (like your 3910) to fain the much superior disk brakes.

Thanks. That's why I wanted the 3910 after having a 4600. Good power and Cat II capabilities in a small frame.....closer to the ground and easier on-off.

(quoted from post at 07:37:34 08/01/18) Bingo.......your comment about Planetary Gears: I have a 2000, 3000 and newly purchased 3910. 2 and 3 have bull gears but the 3910 has planetary
and wet brakes. Is there a reason for the PGears with the wet brake, or were PGs just to change the gear ratio or, in short, why did Ford do that? Any
Idea?

Thanks,
Mark

Click to expand...

Mark, I am confused...
Bull gears? they have ring and pinion in the differential, but not bull gears... Or am I misunderstanding what the outboard bull gear is all about. The tractors with the reduction still have the ring and pinion as well. The earlier row crops had outboard bull gears, internationals farmalls had bull gears external to the differential gears, but 2, and 3s simply have axles off the rearend... But again, local definition of bull gear is everything.

Is there a reason for the PGears with the wet brake, or were PGs just to change the gear ratio or, in short, why did Ford do that? Any
Idea?

Click to expand...

The brakes had nothing to do with the gear ratios.

I'm pretty sure that they added the planetary gears to improve the strength of the rear axle with the more powerful engines of the '65+ 4000 and 5000 series, and the wet brakes were to provide more stopping power for the stronger, heavier tractors. It's just a nice design to put them both inside that larger section of the axle trumpet.