Drift differential welded?

[martin318ise30]

Hellow r3v, just wondering if anybody knew where or how to weld a diff for drifting. So I opened the diff but not really sure what to weld. To be specific im welding a 4.10 diff. Thanks in advance.

[kojack]

You want to weld the spider gears together so that essentially both axles are locked together
Heres a good example;

[martin318ise30]

You want to weld the spider gears together so that essentially both axles are locked together
Heres a good example;

Ok thanks a lot for the example pic. That looks like its gonna take a whole spool of wire. Lol. Anyways. My rear end dont really look like that . I think I have a cover over the spider gears. Im sure a can take that cover off. I hope.

[SkiFree]

Uhm.... pic? Do you have an LSD center?

[Simple_Smith]

Sounds like he has an LSD assuming he pulled the diff from the car in his username.

[BenjaminButtton]

If that's true, please don't destroy a perfectly good LSD.....

LSD's can be rebuilt without too much trouble to increase lock-up, which would be better for drifting than a welded diff.

This might be helpful, again assuming you have an LSD.

http://e30performance.info/viewtopic.php?f=22&t=939

[martin318ise30]

Uhm.... pic? Do you have an LSD center?

Yes just found out it is lsd

Sounds like he has an LSD assuming he pulled the diff from the car in his username.

It is a 4.10 lsd but its not from my previous 318is. I just picked up a shell for really cheap and a full m42 swap with also the diff thinking it was a open 4.10. But gess not. Lol

If that's true, please don't destroy a perfectly good LSD.....

LSD's can be rebuilt without too much trouble to increase lock-up, which would be better for drifting than a welded diff.

This might be helpful, again assuming you have an LSD.
http://e30performance.info/viewtopic.php?f=22&t=939

Dont worry I wont be destroying the diff specially after seeing your link. Im probably going to end up rebuilding it stronger.thanks a lot .

[kman_e30]

If that's true, please don't destroy a perfectly good LSD.....

LSD's can be rebuilt without too much trouble to increase lock-up, which would be better for drifting than a welded diff.

This might be helpful, again assuming you have an LSD.
http://e30performance.info/viewtopic.php?f=22&t=939

lsds cant be welded

[BenjaminButtton]

Dont worry I wont be destroying the diff specially after seeing your link. Im probably going to end up rebuilding it stronger.thanks a lot .

Glad to help and good luck! I found that page a while ago, I'm planning on doing the rebuild on a 3.73 myself.

[Wanganstyle]

Yes just found out it is lsd

It is a 4.10 lsd but its not from my previous 318is. I just picked up a shell for really cheap and a full m42 swap with also the diff thinking it was a open 4.10. But gess not. Lol

Dont worry I wont be destroying the diff specially after seeing your link. Im probably going to end up rebuilding it stronger.thanks a lot .

If your lsd unit is a 168mm I suggest selling it and buying a 188mm lsd in same ratio to build up.

Bmw designed some adjustability in the 188mm lsd; the 168mm has no such design and the top cap also fractures easily. The capsule of both 168mm and 210mm have to be bored to accommodate more plates- the 188mm does not as has a dead spacer inside already.

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[bmwman91]

If that's true, please don't destroy a perfectly good LSD.....

LSD's can be rebuilt without too much trouble to increase lock-up, which would be better for drifting than a welded diff.

This might be helpful, again assuming you have an LSD.
http://e30performance.info/viewtopic.php?f=22&t=939

Awesome link, thanks!

Dont worry I wont be destroying the diff specially after seeing your link. Im probably going to end up rebuilding it stronger.thanks a lot .

Good to hear that you will be doing it the "right" way!

If your lsd unit is a 168mm I suggest selling it and buying a 188mm lsd in same ratio to build up.

Bmw designed some adjustability in the 188mm lsd; the 168mm has no such design and the top cap also fractures easily. The capsule of both 168mm and 210mm have to be bored to accommodate more plates- the 188mm does not as has a dead spacer inside already.

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How can one tell if an LSD has the 168mm or 188mm (part?) design? I assume that the 168mm. 188mm and 210mm ones you mention are the small, medium and large case diff's?

[Wanganstyle]

Awesome link, thanks!


Good to hear that you will be doing it the "right" way!


How can one tell if an LSD has the 168mm or 188mm (part?) design? I assume that the 168mm. 188mm and 210mm ones you mention are the small, medium and large case diff's?

Post a photo and we can all ID it

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