frank_maz 0 Report post Posted December 3 Hi Let's see who can shed some info on this as I'm struck 1987 525e From my knowledge 525e were equipped with either 2.93 or 3.07 diffs Some were lsd which should have an S at the end Mine as 3.08 2001 as you can see in the picture Never come across this before It seems to be an lsd as well Share this post Link to post Share on other sites
duncan-uk 2,584 Report post Posted December 3 Just had a quick look at Andy Everett's book and yes its 2.97 (manual) and pre 84 models then 3.07 (auto) on the 525e. No mention of a 3.08 on any e28 but this ratio is used on an e46 320d it seems, which would fit with 2001 if that's the year? Is it possible a different diff has been fitted? Interesting to know if e46 stuff fits! Share this post Link to post Share on other sites
frank_maz 0 Report post Posted December 3 1 hour ago, duncan-uk said: Just had a quick look at Andy Everett's book and yes its 2.97 (manual) and pre 84 models then 3.07 (auto) on the 525e. No mention of a 3.08 on any e28 but this ratio is used on an e46 320d it seems, which would fit with 2001 if that's the year? Is it possible a different diff has been fitted? Interesting to know if e46 stuff fits! Hi I did see that the diff ratio is used on e39/e46 too but don't look like one This seems e28 shape and also the tag print looks e28 too, bit odd isn't it as never come across the ratio before I asked Andy this morning before posting and he hasn't come across it before Share this post Link to post Share on other sites
duncan-uk 2,584 Report post Posted December 3 e28 back plate and parts on a later diff? Odd as you say. Any other markings? Share this post Link to post Share on other sites
JohnH 148 Report post Posted December 3 The tag does look rather clean and nice even if the rest of it looks like a dogs dinner. Having said that I wouldn't be surprised if the E46 diff internals wouldn't fit a medium case diff. Share this post Link to post Share on other sites
duncan-uk 2,584 Report post Posted December 3 ^ unlikely to be an LSD though unless that can be fitted too? Share this post Link to post Share on other sites