I just finished replacing the transmission on my 1460. Last year I did practically all of the combining in 1st gear as I could not keep it in 2nd. After speaking with a mechanic at the local CaseIH dealership and also to a former mechanic, both suggested a transmission replacement was the best option. I installed a transmission from a salvage combine as the cost of the 2nd gear and the corresponding gear was cost prohibitive purchasing them new through CaseIH. I kept the original transmission in the event I may decide to use it as a backup if I experience problems with the replacement; but that needs to be fixed first. Does anyone know of another source for acquiring a replacement 2nd gear? From what I've been told this slipping out of 2nd gear issue is caused by a combination of factors: 2nd gear was not properly hardened , the teeth angle was not quite right, chaff and other debris builds up in the shifter likeage and prevents 2nd gear from fully engaging, shifter likeage wear. Are the detents adjustable or do they need to be replaced? What is the function of the Fishburn lock? Thanks for the help!!