Hey guys I found a lsd in a 90 model 325is automatic car. Will it fit in my 87e and what ratio should it be? I have read that the auto's have the 4:10 but it wasn't year specific. I was also told only the diffs from the old 5 series would fit my car.
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sigpic87 325E The Honey Badger -
A 4.10 is too much for your eta. Get a 2.93 LSD diff and enjoy your gas mileage. A 3.25 lsd diff from an e28 535is is an upgrade, but it is still slow. Not worth it in my opinion. -
Yeah I kinda like where it is on the highway at 70mph right now too, I don't want to buzz my head off. What cars had the 2.93 lsd diff?sigpic87 325E The Honey BadgerComment
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Your car came with a 2.93 from the factory. The 2.93 LSD was usually found in the 325eS. Honestly a 3.25 LSD is a PERFECT upgrade for an e car. This is most commonly found in the E28 so you'll need to swap your diff cover and output flanges.Comment
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I'll second the 3.25 upgrade being perfect. That and the e36 rack swap were the two single best improvements I made to my car.Comment
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Right on, I will start hunting for the 80's model 535 cars then!sigpic87 325E The Honey BadgerComment
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I put a 3.46 in mine, and love it. I believe it came from an old 6 series. So probably a little harder to find. I wouldn't want to go any higher ratio than that on an e though.1987 325 w/ M52b28 - Bronzit
2007 X3 - Platinum BronzeComment
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