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Differentials Limit Slip, gear ratio discussions.

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Old 10-13-2015, 06:02 AM   #1
ALPINEMTECH98
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Default 328TI wanted LSD.

So i got a 98 5-speed mteck with m52 full swapped and thinking about what the best LSD i should get. Was thinking about welding the diff, but wanting to know what else is good out there for a differential swapped.

Building this for car show, but ideal to drift too. Please help. Thanks!
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Old 10-15-2015, 07:14 AM   #2
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I'm def not an expert, I asked a similar question and was told to get a lsd out of an E30. Not sure about the drifting part though.

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Old 10-16-2015, 06:24 AM   #3
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Originally Posted by Sucksmuchgas View Post
I'm def not an expert, I asked a similar question and was told to get a lsd out of an E30. Not sure about the drifting part though.

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Yeah, i heard of it too. Then i believe you have to switch out the cv axles too?
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Old 11-03-2015, 07:44 PM   #4
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A e30 or z3 will fit with slight work to the body with a lump hammer only ever slight, the cups can be changed so you can still use your original drive shafts or you could get e30 325i ones or z3 2.8 ones which are slightly thicker.

Just done this to my compact used a z3 lsd can't remember the ratio of hand but still using the 1.6 drive shaft just swapped the cups over from the original diff to the new one jobs a Bobby dazzler.

But make sure you double check the torque and use loctight on the nuts that connects the propshaft to the diff, mine span of and caused a lot of vibration and being 300 miles away and not being able to go above 50mph was crap

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Old 11-04-2015, 08:00 PM   #5
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Kind of depends on which gear box you have. if you have an 1:1 ratio gear box you don't want an E30 3.73 lsd, you would want an E LSD in the ration of 2.93 to no more than a 3.46 LSD.

Unless you like having it bouncing on the rev limiter. You can also source a Z3 LSD or a E28 535i LSD. Medium case one ear.
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