LOJ Conversions sells a RB swap kit for the Nissan 350Z and Infiniti G35. The basic kit costs $3,739 and includes motor mounts, transmission mount, oil pan, steel driveshaft (aluminum or carbon fiber optional), shortened shift linkage, transmission adapter, billet aluminum flywheel. The steel driveshaft is only available for the 350Z. An aluminum or carbon fiber driveshaft is required for the Infiniti G35. The kit works with the RB20DE, RB20DET, RB25DE, RB25DET, RB26DETT, and RB30E motors. It works with 2003-2006 Nissan 350Z, 2007-2008 Nissan 350Z (w/ CD009 transmission swap), 2003-2007 Infiniti G35 coupe, and 2003-2006 Infiniti G35 sedan.
Source: LOJ Conversions