07 caddy sdi gearbox!! Help please??

[BeerMonster1]

Hello people. I write this with a large need to get my caddy back on the road. I've had a recommend engine (bst) put into the van and ran the engine in. Shortly after this the gearbox started knocking and I need to get that refurbed or get another one. There is an option to get an abf box and flywheel from eBay. Will this be a direct fit?

Thanks in advance!!