I just bought a '66 110 that is going to replace my '67 112H and I am in the process of swapping over the good parts to make one good tractor before I sell the 112. I had to buy a new pulley for the throwout assembly because the 112 has the double belt setup and the 110 is a single belt. The 112 double pulley is an actual v-groove idler, and the 110 pulley AM30191 is just a flat idler. Is this right? It rides on the vee side of the belt so I would think it should have been a grooved pulley.