# welded vlsd diff good vs bad job?

**URL:** <https://forums.speedlife.net/t/welded-vlsd-diff-good-vs-bad-job/228114>\
**Category:** SON240sx Automotive\
**Created:** [January 10, 2013, 1:19pm UTC](https://forums.speedlife.net/t/welded-vlsd-diff-good-vs-bad-job/228114 "2013-01-10T13:19:43Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![chris240sx\_3](https://avatars.discourse-cdn.com/v4/letter/c/958977/32.png) [@chris240sx\_3](https://forums.speedlife.net/u/chris240sx_3)\
**Post date:** [January 10, 2013, 1:19pm UTC](https://forums.speedlife.net/t/welded-vlsd-diff-good-vs-bad-job/228114/1 "2013-01-10T13:19:43Z")

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First let me start off saying that this is not my diff! And not my welding.  
I had seen this on a fellow 240 owners facebook he decided to weld his s13 vsld diff. How well do u think think this is gonna work? And I’ve never seen anyone even try to weld a vlsd except this one idiot that failed completly but everyone else welds open diffs. Why exactly? Just curious

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**Author:** ![Martino](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/martino/32/5674_2.png) [@Martino](https://forums.speedlife.net/u/Martino)\
**Post date:** [January 10, 2013, 1:35pm UTC](https://forums.speedlife.net/t/welded-vlsd-diff-good-vs-bad-job/228114/2 "2013-01-10T13:35:38Z")

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Unless you’re taking the diff apart there is not enough opening space to properly weld the spider gears on a VLSD.

On an open diff you don’t _need_ to take apart the diff or remove it from the pumpkin…and the shear simplicity of an open diff.

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**Author:** ![eshr32](https://avatars.discourse-cdn.com/v4/letter/e/d78d45/32.png) [@eshr32](https://forums.speedlife.net/u/eshr32)\
**Post date:** [January 10, 2013, 9:13pm UTC](https://forums.speedlife.net/t/welded-vlsd-diff-good-vs-bad-job/228114/3 "2013-01-10T21:13:25Z")

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Most people add shims to a vlsd to tighten it up. For a welded diff, an open diff is usually the starting point for the reasons Martino mentioned.

That being said, it is possible to weld a vlsd. Lots of guys in the uk weld their vlsds (check the driftworks forum).

I myself had my vlsd welded at centerline, and so far its been holding up fine in my r32.