Is my understanding correct?
Select-o-speed transmissions rolled out with the XX1 models. The 871 and 971 tractors had 540 rpm PTO while the 881 and 981 had 540 and 1000 rpm PTOs.
Were/are there 671/681 and 771/781 models?
The transmission consisted of two series, an early with a number of freewheeling gears and a later (thousand series?) without the 'coasting' feature/flaw?
The most common failure is associated with the splines associated with the clutch and service parts associated with stripped splines are not available other than the used market?
Is there any difference in the transmission between the 8X1 and the 9X1 tractors? They will interchange both as a unit and the all the internal pieces are the same?
Just wondering as I have a 981 (that I purchased ~30 years ago and did a partial disassembly to replace a planetary unit - the transmission still works and the tractor is actually my favorite and sees regular farm use). I am looking at a transmission from a 881 just to have spare parts, but don't have much interest unless it's the exact same unit. -
thanks
David
Select-o-speed transmissions rolled out with the XX1 models. The 871 and 971 tractors had 540 rpm PTO while the 881 and 981 had 540 and 1000 rpm PTOs.
Were/are there 671/681 and 771/781 models?
The transmission consisted of two series, an early with a number of freewheeling gears and a later (thousand series?) without the 'coasting' feature/flaw?
The most common failure is associated with the splines associated with the clutch and service parts associated with stripped splines are not available other than the used market?
Is there any difference in the transmission between the 8X1 and the 9X1 tractors? They will interchange both as a unit and the all the internal pieces are the same?
Just wondering as I have a 981 (that I purchased ~30 years ago and did a partial disassembly to replace a planetary unit - the transmission still works and the tractor is actually my favorite and sees regular farm use). I am looking at a transmission from a 881 just to have spare parts, but don't have much interest unless it's the exact same unit. -
thanks
David