Ok I am new to the tractor world. I bought a MF 135 today, it should be delivered next monday. I pid 5700 for it along with a new King Kutter Brush hog. I have done some research and know I have a few ?'s. The guy I got it off of said it was a 1967. From what I figured out it is a deluxe model. It has Flat top fenders and the 8 speed tran. What year did MF begin to use the 8 speed?? Are flat fenders rare??? Should it have a diff. lockon it. Thanks