Is the JD 670 totally mechanical? The mid PTO has been a little rough, grinding when being engaged. Now it won't engage at all, it just grinds. Any thoughts?
1948 Allis UC Hi-Crop Cane 1941 Allis WC 1948 Allis G with loader, 1948 Allis G with dual disc 1948 Allis G 1948 Allis G 1949 Allis G 1954 Allis G 1959 Ferguson TO-35 1972 MF 135 1979 Power King 2418 1989 Ford 345C TLB