Hey guys, I just bought a set of new friction plates for my Subaru R180 3.9 LSD (Black Friday sale). My diff features a lot of backlash (around 0.19 which is exactly at the upper spec), therefore I wanted to open it up anyways. While I am at it it's not too much work to replace the clutch plates. Just for the peace of mind. Is here someone who ever A) changed friction plates B) modified ring/pinion backlash? I am looking for advice, maybe there's something I haven't researched yet. I.e. some talk about factory recommendations regarding the total friction plate stack height, I couldn't find this anywhere. The OE manual basically says "opening of the diff carrier is not allowed" (just replace the unit). Thanks!