Ford 2N 8N 9N Tractor Original sherman step up transmission. This one is 10 spline with a curved gear on it. This fits all the ford tractors listed with a 10 spline clutch. You will also have to add oil to this unit before installing. I will also include a set of instructions with this unit when it ships. The item “Ford 2N 8N 9N Tractor Original Sherman Transmission STEP UP 10 Spline” is in sale since Thursday, June 16, 2016. This item is in the category “Business & Industrial\Heavy Equipment Parts & Accs\Tractor Parts”. The seller is “rippeestractor” and is located in Farmington, Missouri. This item can be shipped to United States.