I agree with Bob. The 8 speed powershift transmission basically consists of a clutch pack in the front and a planetary brake pack in the back and another smaller clutch pack in the rear side of the brake pack. They are called planetary brakes and that is what they do, they brake the outer planetary ring gear to change speeds. Trying to compare it to a car or truck transmission is what will make it confusing to most people. They are two completely different setups. The biggest difference is the fact that there is no torque converter in the JD powershift. They are a very simple and reliable transmission, but when things go south it gets expensive fast! A total rebuild can get as high as 8-10K I suggest a pressure test in every gear and if a problem is suspected not to put off the repair. If caught early it can be a BIG difference in the bill.
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