Hey JDM Love
You may want to check out your local JDM salvage importer. The '05-'07 Skylines with the VQ35DE engine and the CVT (transmission). Their rear differential has the LOW final drive AND the 350Z stub axles (Right stub = 38220-AR010; Left stub = 38220-AR011).
JDM part number for the entire rear diff: 38301-2C807 (4.363 final drive; has the 350Z/G35 axle flanges)