A/T update posted by tinner on February 09, 2010 at 06:09 PM
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I don't know if you were just hunting for common problems in Nissan transmissions but yours (Twinturbo) is a RE4R03A, but your correct about the high pressure seals from TransGO. It requires a complete tear down..The seals are on the rear sprag and on the front oil pump.. BTY, there's more than one High Performance transmission suppliers for the Z that use these. If you watch a tear down and see the front seals on the pump and they're Blue and Green they've been replaced ,, OEM is black and without the tenison wires..