stevepoe Posted December 9, 2012 Share Posted December 9, 2012 So I have had this diff around for a few years and now I'm wondering what exactly I have .wondering if you guys could help please .I Had this in a 92 e36 bmw that had all sorts of upgrades . was told this diff was upgraded and a lsd. trying to confirm any help would be much appreciated. numbers of ring gear h23xt25610478 numbers on diff 40610065032438581s25 4 bolt pinion flange Quote Link to comment Share on other sites More sharing options...
RJ's325ITS Posted December 10, 2012 Share Posted December 10, 2012 It does looks like a LSD differential, as far as what gear ratio it is.....! I don't kow... Why don't you just make a reference mark in the diff vs. the ring gear, do the same in the 4-bolt flange; with your hand turn the flange as you count revolutions until you complete one full rev on the ring gear, then divide the numbers and that will give you your gear ratio! Quote Link to comment Share on other sites More sharing options...
KTL Posted December 10, 2012 Share Posted December 10, 2012 Yep that's a LSD differential. Simply count the number of teeth on the ring gear, divide by the number of teeth on the pinion gear. There's your axle ratio. Quote Link to comment Share on other sites More sharing options...
M3Eurotrash Posted December 11, 2012 Share Posted December 11, 2012 Does it have the tag on the back? If it hasnt been rebuilt with a different gear ratio it should say. Or just count the teeth as stated above. If your looking to get rid of it id take it off your hands Quote Link to comment Share on other sites More sharing options...
stevepoe Posted December 11, 2012 Author Share Posted December 11, 2012 thanks guys looks like a 315 lsd then . I have had this thing for years in my Garage . what kind of value does this thing have ? if any . It worked great before the car caught fire. Quote Link to comment Share on other sites More sharing options...
D_Eclipse9916 Posted December 11, 2012 Share Posted December 11, 2012 thanks guys looks like a 315 lsd then . I have had this thing for years in my Garage . what kind of value does this thing have ? if any . It worked great before the car caught fire. Out of a 95 m3 most likely. Worth about $200 on bimmerforums.com Quote Link to comment Share on other sites More sharing options...
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