My 2000 SVT has the upgraded MTX-75
Unless you know the serial number code (Terry?) the easiest way is by how much fluid it takes.
Upgraded MTX-75 only takes 2qts. Others take 2.6qts.
Hopefully you'll get a "rebuilt" one and that should include the new parts; however it is possible you'll get a "used" one from the info ScottK posted!!!
That would suck!!! That could also be why some people have multiple failures!!!