I thought they didn't go to a 4 slot bushing till 39. Then the slot was eliminated in 1950 when Ferguson bought in, and they went to an oval shape to reduce left hand thrustFrambus support bushing for a 1936 Massy Harris.
I thought they didn't go to a 4 slot bushing till 39. Then the slot was eliminated in 1950 when Ferguson bought in, and they went to an oval shape to reduce left hand thrust