Can someone tell me the model # of my tranny? From what I read it is a 722.320. Is this correct?

 

Also can someone tell me what part this is in the pic? Fluid was leaking out of it bad. So I removed the snap ring and cover to find a square hard seal or o ring. I'm having trouble identifying it. I'll be going to the deal for a new seal I would assume.

 

FYI. The picture in the last photo/post is the secondary or rear pump assy. The O-Ring I need is #29 off the parts breakdown. Part# 016 997 37 48, about $1.70 from the dealer. A common leak for these trannys. The other ORing # is 016 997 32 48, that is the larger one.

Here's a link to the procedure and breakdown.

http://www.justanswer.com/uploads/eu...r_oil_pump.pdf

Thanks for all the help!!