I have a Kubota L5030 GST transmission love the tractor. I'd like to use it for trenching however I believe it will require the use of an added creep gear set, adding another 12 gears. I found the cost of the parts associated with it, however I cannot find any info in the service manual on the installation of the creep gears. Does anyone have any info on this? Or be able to help? Kubota dealer says tractor needs to be split for it and estimates about a 2500$ in just labor above the 600$ for the parts. Any thoughts?