I have a gs6-37dz 6speed 320d diesel gearbox on my sr20det.
Personally I think it was a nightmare to install since it was not alot of information out there.
When installed its awsome at drifting, just shift between 4th and 3rd and I use a aftermarket coolworx shifter.
https://www.speeding.nu/thumb/4456/1...tall-svart.jpg