wintersun wrote:
It depends on the vehicle. In some cases the oil from the engine can be forced under pressure into the transmission and damage it. With other vehicles it simply leaks out of the trans housing and causes no damage. I would do more research on worst case scenarios with your particular truck.
I had a Chevy Blazer that blew out the rear seal at 11,000 miles so mileage is no reliable indicator. With the Chevy it went quickly and completely and the SUV was not driveable until the seal was replaced.
What types of vehicles would this be likely to occur in?
This is not the case with any rear conventional engine/trans setup I've ever seen. Only thing connecting the engine to the trans is bolts and any oil leaking out is going to the gound. Curious though.