I don’t have the number for the rears readily available but might have them in my office at work. As for driveline, mine is still a stock 318 and 904 combo with a 2.76 rear gear. The benefit I get from the Bilsteins is a smoother ride but paired with the spring rates and the sway bars, it has the ability to handle the roads in SWMO pleasantly and can be pushed a little for a fun drive.
