Yeah I do t mind spending $1500 to get all the tuning abilities. Looks just like a Cusco.
https://dsportmag.com/the-tech/speed...fferentials/8/
The 3j has two angles included to play with. I don't think I want to much lock on deceleration. Your right mad hatter should get enough turn in with a 128. If not little handbrake will pitch it in.
So here is a 168 lsd I have next to my 128i auto that the lsd is going in for it's 3.7 r&p.
I have some dimensions to racingdiffs when I was thinking about there cheep conversation and they said it was a 188L not an LW as it should be.
I haven't really found a definitive answer on something I can measure or someone who knows the "diff" between the 188's.