Hi mate I’m just about to do this to my r32 using the 08 d22 nav box (yd25ddti box)with an r32 rb26 bell housing gearbox was $900 and the bell housing was $400. But it is shorter by about 30mm so driveshaft needs some work but for a $4500 gearbox it’s good money spent to get a big box and something that is just over 12 years old. 20det boxes are over priced for used 30year old parts but will let you now how it all goes as I’m doing it.