Open to lsd swap.

[Active16Bits]

Thanks for the useful info guys!

The yard has a week long warrenty so I'm going to pick one up while it's already under the knife.

[rThor432]

That still doesn't tell you the condition of the clutch pack.

This is a good point regarding used/junkyard diffs. It sucks to go through the effort to install one and then still only peel one wheel.

[kronus]

Also, for ratios, don't go higher than 3.46ish, anything taller than that would be inconvenient on the freeway.

[kronus]

There is a tag attached to one of the rear cover bolts. It should have the diff ratio and slip-ness. A 2.93 LSD will be labeled as S2.93, a 2.93 open will be just 2.93.

[Active16Bits]

That's all I needed to know. Thank you.

[u3b3rg33k]

I want to say search. If you know how a limited slip diff works, you won't need to ask.



Anyways, if you turn one output shaft, the other will turn the same direction if it's an LSD, opposite direction if it's open/atb.

That still doesn't tell you the condition of the clutch pack. You'll also want to be careful of which ratio diff you end up with. An eta with a 4.10 diff would be stupid, imho.

[Active16Bits]

Hey yall. I currently have a 325e with an open diff. I want to swap over to a lsd. I plan on getting one at my local pickapart since they're cheaper there than online or new.

My question is, how can you tell if the differential is an lsd without opening it up? I looked at mine and couldn't see anything stamped on it?

Oh and I have a "medium" case by the way.