Skyline GTS-4 Same Trans as GTR?
 

I've seen a few people claim that but can't find jack shit to confirm.

Is the GTS-4 running a GTR transmission? I always thought it was a standard AWD setup with a torque biased clutch-based center diff.

The car actually can control Front-Rear power slip and be electronically controlled to remain RWD?

Different part numbers...

R32 GT-R:
https://www.amayama.com/en/catalogs/...989-1662/7/511

R32 4WD:
https://www.amayama.com/en/catalogs/...5Bdrive%5D=4WD

If you spend time on Amayama you'll find that the front transfer case is the same part number.
https://www.amayama.com/en/part/nissan/3310705u00

Go to the gear sets and it takes you to the same parts diagram with part numbers.

https://www.amayama.com/en/catalogs/...989-1356/7/513

https://www.amayama.com/en/catalogs/...989-1662/7/513

COuld the case be different but the gears themselves be the same??

No idea, seems to be a lot of confusion on this on the Aussie forums as well. Several claim they are identical, some say the cases are different, some say the syncros are different.

Front and Rear diffs have different final drives, that's for sure.

And the R34 GTT-4 (?) does use an R33 GTR Transmission with GTR style 4.11 final drive.