881 with no serial number

[mrhud]

i have a 881 i am go ing to use for parts has diesel engine block cast number310609 the selecto speed trans has no numbers at all where the numbers should be the trans is blue under the red the cast on it is c3nn . question is this trans a new ford factory replacment why it does not have any numbers stamped on it ? i am also assuming the engine is a 172 cu.in

 

[showcrop]

This is very common. When the new generation tractors came out for 1964 Ford offered a no charge swap out of the originals. Sometimes the old number was transferred over to the new transmission but it often wasn't.

 

[Destroked 450]

310609 is for a 172 engine used on the 58-59 801/901 models
Transmission case C3NN is for the 63/64 models and replacement transmissions
Looks like you have a 58/59 model tractor with a replacement transmission

 

[Sean in PA]

Someone posted on here several months ago about how to tell whether it is a DDC or ORC S-O-S. The casting number can't be trusted because after a while of swapping out old transmissions for new, they started rebuilding the old transmissions that they had removed and filled them with the newer insides and used those as replacements. The key thing to look for is the transmission top plate where the shifter and PTO conduits attach. If it is symmetrical left to right then it has the older DDC transmission guts inside. If the top cover is asymmetrical and slopes off more steeply on one side than the other, then it has the newer ORC guts inside. I haven't verified this, but someone on here that seemed to know what he was talking about made that statement.

 

[showcrop]

Someone posted on here several months ago about how to tell whether it is a DDC or ORC S-O-S. The casting number can't be trusted because after a while of swapping out old transmissions for new, they started rebuilding the old transmissions that they had removed and filled them with the newer insides and used those as replacements. The key thing to look for is the transmission top plate where the shifter and PTO conduits attach. If it is symmetrical left to right then it has the older DDC transmission guts inside. If the top cover is asymmetrical and slopes off more steeply on one side than the other, then it has the newer ORC guts inside. I haven't verified this, but someone on here that seemed to know what he was talking about made that statement.

Yes, that is exactly it. The right 1/4 of the cover slants down to the right on a 2nd gen.