Ok i would take a guess that the gbox had done somewhere between 50,000k to 100,000k. All i know was that the box was a second box when i got it. IT doesn't have any syncros missing and so long as you run a decent gbox oil it shouldn't have any problems. I've got the 20v + its box now so i don't need the old one. That's the only reason why its for sale and i will add that i think the price is quite cheap. The pressure plate is long sold with the 4ag engine. I've seen it been rebuilt and it rips