I've had worse happen on a corolla not much older than that. Sadly in my experience if you buy used, it usually means someone leaked the fuck out of the oil / coolant or grinded the fuck out of the gears, trashed the differential or other bullshit and they performed some trick to make it undiscoverable for the next 500 miles and during the mechanical check. I've bought probably half a dozen "gently used low mileage" "reliable brand" (toyota/honda) and something critical has shit the bricks within a few months every single time.

As the ol saying goes, nobody sells a vehicle they're happy with (of course people do, but they're predisposed to pawn off a dumpster fire by concealing the smoke with bags of tricks). With the used market such a shit-show right now it's almost no point to buy used anyway -- I finally just bought a new Toyota because the used ones with 100k+ miles were selling a few grand under MSRP.