1755/1855 series oliver trans/rear end differences January 24, 2014 12:11AM
Hey everyone, I have read in the past there are only small differences between then1750-1950 olivers. I see most guys build off of the 1800-1850 trans/rear. What are the differences between and 1800-1850/5 and a 1750/1755 ? I have read the 1750/5 series are lighter but is their a loss in strentgh ? Any info is appreciated. I have a 1650 rear now and want to change the trans-rear so I can run the heavier classes and want to find the best way to go.
Thanks everyone.
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Re: 1755/1855 series oliver trans/rear end differences January 24, 2014 11:12AM
I know someone on here knows the differences. Iam just looking for the difference between a 1750 and 1800-1850. I know they have a a,b and c on the 1800 series. Is that also true for the 1750 series ?
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Re: 1755/1855 series oliver trans/rear end differences January 24, 2014 12:31PM
I have only ever worked on an 1800b but I have been told that a 1950T has a roller that rides on the back of the ring gear to keep it from pushing away from the pinion. Some other models may have this also. I do know that an 1800c and anything later has an oil pump to lubricate the transmission. the 1800 a and b do not have this.
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Re: 1755/1855 series oliver trans/rear end differences January 24, 2014 12:52PM
Generally speaking, Oliver rear ends are pretty robust. If I was going to do what I think you are planning to do, I would use a 1755, 1855, or 1955. Keep in mind, this will not look "stock" in a 50 series tractor. The 1755 rear is supposedly lighter than the 18. The 19 will have triple disc brakes, making it heavier. With that said, an 1855 rear would be perfect, but I would use a 1755 rear if I had one. The 1755 is probably not that much weaker than an 1855. If you have a larger 50 series and need to keep it stock appearing, the 1750, 1850, and 1950 rears would work also. They are strong also. The 1800 A series rear IS NOT one I would use in a puller. They are probably stronger than I think, but they were of a different- but similar- design. What model are you trying to call this tractor? 5.9 swap?
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Re: 1755/1855 series oliver trans/rear end differences January 24, 2014 01:01PM
I have a 8.3 I am going to run. There isn't too many light classes that a 1655 with a 8.3 will fit into due to the big cubes so am thinking to just go with the larger rear end before I get too far into the project. That way I can run the heavy classes with larger cube limits. I was thinking of running white 160 metal.
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Re: 1755/1855 series oliver trans/rear end differences January 24, 2014 01:52PM
This is exactly what I want to do. I am going to run a White 2-85 or 2-105 pretty much same as the1900/55






Quote
questions
I have a 8.3 I am going to run. There isn't too many light classes that a 1655 with a 8.3 will fit into due to the big cubes so am thinking to just go with the larger rear end before I get too far into the project. That way I can run the heavy classes with larger cube limits. I was thinking of running white 160 metal.
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Re: 1755/1855 series oliver trans/rear end differences January 24, 2014 08:54PM
haha looks like nick pickrell has started a revolution of 8.3 powered whites ,, and ill tell ya nicks tractor is awesome
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Re: 1755/1855 series oliver trans/rear end differences January 25, 2014 12:35AM
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4055t
haha looks like nick pickrell has started a revolution of 8.3 powered whites ,, and ill tell ya nicks tractor is awesome

The Pickrells indeed did. I had the idea years ago, searched the web and found their tractor and it was like gas on fire.

If you use something hat didn't use the Perkins engine (17-1955) plan on buying a front tub off something that did. Not sure if its NOT possible with the Waukesha tub but the Perkins tub is easier.
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Re: 1755/1855 series oliver trans/rear end differences January 25, 2014 01:02PM
We used a 1800 with a lot of modifications, billet input and straight cut gears for the gear combinations. We run a 8.3 at 636 c.i. super farm and have had good success. Check out youtube " Still Spendin Daddys Money". Its a good combiation!
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Re: 1755/1855 series oliver trans/rear end differences January 29, 2014 04:39AM
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EKERR
We used a 1800 with a lot of modifications, billet input and straight cut gears for the gear combinations. We run a 8.3 at 636 c.i. super farm and have had good success. Check out youtube " Still Spendin Daddys Money". Its a good combiation!
We are getting ready to put a 1800a together for an altered farm stock class with an 8.3. we are looking at what it takes to make it a pressure lube system - what would be considered the must do modifications and best bang for the buck to run at this level?
thanks
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Re: 1755/1855 series oliver trans/rear end differences January 25, 2014 12:01AM
I have had the project going to about 6 months but his tractor definitely gave me the idea after seeing the YouTube videos awhile back. So what model Oliver is a 2-85 and a 105 ? 1850 and 1950 ?
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Re: 1755/1855 series oliver trans/rear end differences January 26, 2014 12:33PM
The 1755 rear ends use shorter axle housings than the 1855 therefore they will be lighter but otherwise the hosing and gear setups are similar. You can install the 1755 axle housings on the 1855 but will need to make spacers as the rear end opening has a larger diameter. The 2-105 rear is very similar to the 1855, but the 2-105 does use the roller bearing to help keep the ring gear from sliding away from the pinion shaft.
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Re: 1755/1855 series oliver trans/rear end differences January 24, 2014 04:24PM
There's a guy in northwestern PA that has an 8.3 powered Oliver 2150, but the rear end was swapped out in order to ditch the planetary axles. He runs 9-bolt rims.
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Re: 1755/1855 series oliver trans/rear end differences January 25, 2014 02:29AM
Thing is I think Nicks 8.3 is decubed to run in the 450cid class. I am looking to bore and stroke mine to 640cid to run with the JD6030s
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Re: 1755/1855 series oliver trans/rear end differences January 25, 2014 04:18AM
It is now. When he first started it was a standard 505
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Re: 1755/1855 series oliver trans/rear end differences January 25, 2014 08:37AM
Link

[www.pulloff.com]
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Re: 1755/1855 series oliver trans/rear end differences January 26, 2014 01:18AM
The 8.3 is the big brother to the 5.9 cummins and I don't see why they couldn't be built like people are building the 5.9. The bad thing is not to many people are making aftermarket performance parts for them.
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Re: 1755/1855 series oliver trans/rear end differences January 26, 2014 04:12AM
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firephight
Thing is I think Nicks 8.3 is decubed to run in the 450cid class. I am looking to bore and stroke mine to 640cid to run with the JD6030s

Not so sure your gonna get that much in there.
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Re: 1755/1855 series oliver trans/rear end differences January 26, 2014 06:42AM
4 7/8 Bore /stroked crank



Edited 1 time(s). Last edit at 01/26/2014 06:47AM by firephight.
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Re: 1755/1855 series oliver trans/rear end differences January 27, 2014 01:29AM
4.78 bore and the stock 8.9 crank equals 636 C.I. The 8.9 crank goes right in the 8.3 block.
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Re: 1755/1855 series oliver trans/rear end differences January 27, 2014 03:01AM
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EKERR
4.78 bore and the stock 8.9 crank equals 636 C.I. The 8.9 crank goes right in the 8.3 block.
will the 8.9 fit in the old 6ct 8.3 block or only in the new ISblock? Also the stock stroke is 5.69 can it be stroked to say 5.75?
So bore 4.875 x stroke 5.75 =644cid
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Re: 1755/1855 series oliver trans/rear end differences January 27, 2014 04:09AM
Everything I have read says yes they will swap. Never done it myself though so I can't say for sure. Ham sure ekerr will know.
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Re: 1755/1855 series oliver trans/rear end differences January 27, 2014 10:35AM
just build a cat 636 cubes stock saves money
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Re: 1755/1855 series oliver trans/rear end differences January 27, 2014 11:01AM
Anyone do any aftermarket parts for the 3208 ? They sound wicked !!! I can't get enough of the most boys tractor on YouTube.
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Re: 1755/1855 series oliver trans/rear end differences January 27, 2014 11:17AM
chech out oliver pulling tractor compilation 2013. some good ones on that youtube site.
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Re: 1755/1855 series oliver trans/rear end differences January 27, 2014 11:25AM
I'm a red guy but I love the sound of the Cat and Perkins V-8s.
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