Red Pete, IMO the Power-shift is better, the old 20, 30, 40 Series 8speed Power-shift or the 50 series 15 speeds gave you what ever speed you needed with a push or pull of the thumb on the shifter. The old 8 speed PS trannys were absolutely bullet proof when operating on loader work or pulling a 650 bu grain cart, and catching grain on the fly. The 15 speed allowed one to shift and leave the RPS at one setting when the 8 speed was shifted and them needing the RPMs to match the Combines ground speed. The only draw back to the 8 speed Power-Shift in farming operations was the 1.5 MPH jump between 4th and 5th. On the higher HP tractor more noticeable than the lower hp models. The Quad, You always seemed to be the wrong gear when needing to shift to another range and gear in loader work or grain cart work and turning at the end of a row onto a turn row and head back down the next set. The Quad is a bullet proof tranny too, it is not as handy as a Power Shift IMO!!!! Deere did a lot to help that tranny when they came out with the Power-Quad, but there are still time when range changes are needed and there is a slow up in the gear change process. Where with the Power-Shift you just take you thumb and click the gears up or down with little to no clutching. Hope this helps. Later, John A.
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