SRAM 10 speed help!

[Whip Chop!]

Hey everyone.
I'm upgrading my 2009 GT Sanction from a 1x9 to 1x10. Something seems off. The X9 mech that I have seems to locate the swing arm really high. It is touching the cassette without the chain on or tension. Also the upper pulley seems really far forward. Did I buy the wrong mech? Or is it not compatable with my hanger?
Any help would be appreciated.

[Slash5]

Best guess is that you don't have the derailleur mounted correctly on the hanger. The derailleur is not sitting on the hanger stop.
Seem to get this one about twice a week lately.
SRAM Rear Derailleur Insanity

Derailleur moving forward...

[customfab]

If the B tension tab is behind the stop on the hanger it's fine. That position is common on SRAM mechs when they don't have a chain on them. Once you put the correct length chain on their it will pull it into position and be fine.

[Whip Chop!]

If the B tension tab is behind the stop on the hanger it's fine. That position is common on SRAM mechs when they don't have a chain on them. Once you put the correct length chain on their it will pull it into position and be fine.

You were right. I got the chain on there and everything is working normally once adjusted. I've installed other rear mechs and never had the swingarm go back so far. This particular X9 has a really strong spring in it. It's probably a good thing so it'll reduce chain slap and be the closest thing to a type 2 for me. I found a screaming deal on an OEM 2011 short cage. Thanks!