supersonic01 0 Report post Posted Friday at 11:04 PM I have a 2001 325CI, it has a 188mm diff with a 3:15 gear, I'm trying to upgrade the ring and pinion and can not figure out if it's a 188, 188K or 188L. It's a open diff not a LSD. Iv called a bmw dealership and they were not able to help. Does anyone know how to tell the difference between the 3 or what's the trick? Quote Share this post Link to post Share on other sites
Eagle 1762 Report post Posted Saturday at 05:50 AM 188k. 188 is for older models up to E36. 188L is newer models after E46, 2 Quote Share this post Link to post Share on other sites
elias 387 Report post Posted Saturday at 05:52 AM Are you wanting to go to a different ratio? I could be interested in buying the 3.15 off you. Quote Share this post Link to post Share on other sites
supersonic01 0 Report post Posted Saturday at 11:54 AM @Eagle is there a way to tell for sure? Not questioning you, just how do you tell? Quote Share this post Link to post Share on other sites
supersonic01 0 Report post Posted Saturday at 11:55 AM @elias yeah im looking into a 4:10 or bigger cause im turning this into a drag car....and possibly, as long as it looks ok, car has 210,xxx on it Quote Share this post Link to post Share on other sites
Eagle 1762 Report post Posted Saturday at 09:19 PM 9 hours ago, supersonic01 said: @Eagle is there a way to tell for sure? Not questioning you, just how do you tell? They dont physical fit in each others casing but there are measurements listed here Quote Share this post Link to post Share on other sites
