Hmmmm..... 4-5 years. My first experience with 4 wheel Gravelys. Bought it not running and with transmission troubles. Hindsight I should have parted it out, but it is still one of the cleanest riders I see in non-restored condition. Came with original manuals and all. I have way too much invested in that tractor and I talk about selling it time to time. I know deep down I'll never part with it. It was a huge undertaking to figure it all out and my dad and I enjoyed every minute of it. When we took the side off the case, shafts were laying in the bottom. When it went, it had blown some of the bosses on the inside of the case apart and thrown shafts. Ohh yeah... it wouldn't roll either.