Ok long story short, rebuilt 4age 16v in my gti ae92, just got it in and running over the weekend, after a quick lap of my street I discovered a chronic oil leak between bellhousing/block... rad not...

Anyhow pulled gearbox off this morning and found my rear main seal (which was brand new genuine) to be almost all the way out of the housing... rad not...

It was installed properly/straight, my exact procedure was that I put the seal face down on a flat surface and pressed the housing over it so the face of each was flush and level, a little bearing lube was used to aid the install....

Wtf happened to make it fail like it did? does the seal need to be pushed deeper into the housing past the face? that's the only thing I can see be a factor, not much else can change really.. Ive done a few rear mains and never had a drama before?

Cheers for any insight

Niz