1550 high speed

Dieseltech · Aug 23, 2015

Neighbor and I went to Wisconsin to pick up the diesel 1550 he bought. It's a wide front row crop, hydra-power and has the high speed gear set with 6th in the lower shift quadrant, tag has 255-22179 model and 180745-502 SN. Was used by a canning factory for hauling. Did Oliver make many like this? Never had any set up this way where I grew up. Books I have show it's a 1966 year, want to know if that's correct. Thanks!

J. Schwiebert · Aug 23, 2015

It is a 66 model

B A Star · Aug 23, 2015

Dieseltech

   The model number 255-22179 = 255 is the second build group of 1550 tractors.  Following - first "2" means row crop adjustable front axle, second "2" means it was built with a diesel engine.   Last three digits are all the components that were installed during the assembly.
   SN 180 745 is the serial number for the tractor, built in probably late October 1966.   Last three digits is the power train code.   We already determined that your tractor is a Row Crop, thus the 502 means high speed.   502 was used in more than one application, a row crop with probably 34" rear tires it is a high speed.  If it was a Utility with 26" rear it will have the 502 power train to make up for the smaller tires.

Mike(NEOhio) · Aug 23, 2015

Mine has the hi speed on 16.9-38s. Be very careful in 6th!!

Dieseltech · Aug 23, 2015

Tractor has 15.5x38 now, fellow that owned it before said it would go 26. My MF 85 will do 32 but it has 18.4x38 on it now..

Big Marv · Aug 23, 2015

I bought a 770 with that kind of "Upside Down" shift pattern a few years back. It had been used as a spryer tractor on a vegetable farm here in Michigan. The first time I drove it around in road gear it scared me, but I bought it for the sprayer attachments, so after I removed them I sold it to a man in Ohio. He was thrilled with the high speed transmission, and was going to restore it and use it for tracor rides. He didn't seem at all afraid of the high speed. I would think a 1550 and 770 are very close to the same tractor, so it would go about as fast, with 13.6x38 rears. Neither tractor would be much of a match for trying to stop a fully loaded hay wagon or gravity wagon, so I would be very wary of using it as a field-to-farm transport by a kid. Just my 2-cents worth...

BANDITFARMER · Aug 23, 2015

Our local Oliver dealership sold one 1550 row crop with a hi-speed transmission in it to a farmer, He wanted it to move equipment and wagons from farm to farm on the road. After he had it for a month he asked what it would cost to take the high gears out of it because it's too fast, He didn't like the answer he got and sold it not long after.

It sounds like the gear pattern in my 1550 Utility (see picture) and on it 1-4 are a little slower than a row crop but 5 and 6 are much faster. Mine with 14.9x28 tires goes 20 to 22 mph on the road. More than likely they both have the same transmission. I would say the Row Crop with the hi-speed transmission would be in 150 to 250 (or less) range so not many made that way. Bandit

farmerwithmutt · Aug 24, 2015

Mine has it and it's scary but like all things if you respect it it's ok. I wish it had a wide front you have to watch it close on the road I usually only drive it myself as the reaction time on turns is a lot faster then expected also I would recommend weight going down the road with a Bush hog and just the starter weight one small bump and things get real interesting when the front end starts bouncing at that speed

oliverguy88 · Aug 25, 2015

Does anyone have a set of the 14.9-28 spinout wheels for one of these? I also need the doors for the battery boxes that is made into the steps. Thanks

1550 high speed

Dieseltech

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J. Schwiebert

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B A Star

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Mike(NEOhio)

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Dieseltech

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Big Marv

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BANDITFARMER

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farmerwithmutt

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oliverguy88

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