I put this on the JD forum and thought afterwards, maybe I should have posted it here. I'm sending pics as well. Neighbors tractor and he says the fwd just quit. He says he never heard any strangs noises ( he's not mechanically inclined). The pinon gear is completly gone and the ring gear and spiders look just fine. No particles in the oil any bigger than a grain of salt. I've worked on hvy trucks for about 35 years and never seen this before. No sign of abuse and no sign of heat or improperr oil. I'm thinking the pinion gear was never hardened properly? 1300 hrs on the tractor. Any have an idea or seen this before or know where I could find a used unit? Thanks in advance! EGBinOR