660 third gear?

rustred · May 29, 2020

my 660 has CC after the serial number which stands for heavy duty third gear. I always wonder what that means, is the actual gear a heavier gear or is it a different gear as in for MPH. thought maybe pete 23 might know.

pete 23 · May 30, 2020

Well, in a 560 it is a slower speed gear as some found 2nd too slow and third too fast for heavy tillage. I remember installing one in one of the 560 diesels when I did the original final drive update.

It was one of the very first ones we sold and don't think it was available to order at that time but then after that we had some with and some without as ordered.

rustred · May 30, 2020

thanks pete, it don't feel like its slower I think 5.5 mph in 3rd. I have a few parts 660's and some don't have the CC on tag. couple weeks ago in installed the 17 gpm pump from a parts unit and put the power steering unit on it. the steering ram started leaking so this morning I stuck the manual drag link back on and plugged the power steering hoses. went to work and holy man the oil got hot in the trans. up to 200 degrees. so then I was thinking the pump must be dead headed. so connected both lines together and she runs normal now . till I get some time to fix that cyl. so I am also thinking the 17 gallon pump must be only for power steering? I don't know. it had a 12 gallon before I changed stuff around. boy sure is nice with power steering.

660 third gear?

rustred

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pete 23

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rustred

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