It’s the REAL CLUTCH DELAY VALVE!! I always wondered from the day last year that I broke my Tranzilla and when swapping it out I noticed I didn’t remove the little blue item in the connector that “hey, I really didn’t notice the difference from the HRB from my previous trans that I did take the thing out. Why I asked myself since until today, because it was all a placebo effect!!! That little blue thing is a restrictor no doubt but this black thing is the real device that allows just about full flow one way and spring regulated return pressure the other way. Here’s the guts
View attachment 92575
View attachment 92576
View attachment 92577
The good news? It’s easy to gut it and maybe even enough hose to just remove it and plug the SS hose right into the part that comes out of the firewall, I haven’t tried that yet but will before putting the BSB in.