Your GT has the Mono I ( 2006-09) suspension. The GT, ER, Standard and 2006 RTX Apex all share the same suspension. The 2007 and up RTX is different. In 2008 Yamaha beefed up the front pivot and left the rear pivot the same as previous years.
As mentioned, Travis from BOP can help you out with any used parts that you may need.
http://www.barnofparts.com/
If looking for new parts any of the Preferred Vendors on TY can also be of assistance
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