Does anybody know what's the difference between 95 m3 rear diff and a 93-95 328/325 L/S diff is. minus the gears(R/P. Have a 95 auto and the 328 auto has 3.91 gears and it has L/S too. would it work in my 95 m3 auto? I can pick up used at a huge savings over swapping R/P. No flames Please !!! Just good answers.