Ok guys. I'm fairly new to tractors and attachments so I'm hoping someone will help me out. I recently bought a used John Deere rear mounted 54" snowblower and I have an imatch on the back. The guy I bought the blower from had it mounted to a BX. I am pretty sure I will need a longer drive shaft for it. I would assume that everyone with this set up would use the same length drive shaft. So my question is, what is the length that I need? Can I find one this length or will I need to cut it? Are the rear PTO drive shafts the same as far as fitting the tractor? Are there any brands in particular to avoid? Thanks for your help!