Seal The Deal

Well, paid cash for the 05 extracab prerunner w/48k on it 2 weeks ago now. Just got the truck back today from having the dealership replace the rear main seal because it was leaking. From the receipt it says they refilled the gearbox with fresh gear oil too. Clutch was fine, musta not been doin it too long although it was happening for longer than I've had it. Oh yeah, 2.7 5 spd. Bought certified used from RC in Alvin. They did the work today, picked up after work. Zero dinero. Bonus I guess. All seems good except blind backing into driveway because backup lights weren't plugged all the way in on gearbox. That took about 2 seconds to hook back up. Drove good felt OK like it should. Now if it'll just stay dry. Was this a common issue with the 4 cyl that year or just freak thang? This truck apparently has not been modded at all or abused, really super clean.