Looking for a rear LSD conversion for my 78 280z can anyone help

 

 

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Anyone knows which one I can use


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Late 87-89 300zx Turbo Rear end, which are getting hard to find.  Also the 88 has two flavors, CLSD and VLSD, but the VLSD only came in the Shiro's.  You must have the axles if you use the VLSD.

Could always spring for a quaife. https://shop.quaife.co.uk/catalogsearch/advanced/result/?vehicle=4&product_type=11&sub_type=16&manufacturer=53&model=437&q

 

You can also get a Subaru R180 LSD and stub axle kit from FutoFab.

http://www.futofab.com/index.php?option=com_content&view=category&layout=blog&id=38&Itemid=122

Chuck

 

And what if I use the CLSD


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Late 87-89 300zx Turbo Rear end, which are getting hard to find.  Also the 88 has two flavors, CLSD and VLSD, but the VLSD only came in the Shiro's.  You must have the axles if you use the VLSD.
Could always spring for a quaife. https://shop.quaife.co.uk/catalogsearch/advanced/result/?vehicle=4&product_type=11&sub_type=16&manufacturer=53&model=437&q
 

What if I use the CLSD


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You can also get a Subaru R180 LSD and stub axle kit from FutoFab.
http://www.futofab.com/index.php?option=com_content&view=category&layout=blog&id=38&Itemid=122
Chuck
 

Okay so I would have to use the Subaru R180 but use the axles kit from futofab


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What it be possible to use the 350z rear subframe for my 78 280z


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CLSD is fine. The r200 280z axles will slide right in. You also have to take the pinion flange from your current r200 over so the drive shaft will mount properly and the diff cover too. Or you can get the support from Arizona Z car so you can run the diff cover:

http://arizonazcar.com/diffmount.html

There are other cheaper options out there for running the finned cover. Not sure if he's still making these or not:

http://forums.hybridz.org/topic/98295-steel-brace-for-r200-clsd-finned-cover-in-s30-new-list-and-design/?hl=r200

Edited March 2, 20178 yr by JSM

CLSD is fine. The r200 280z axles will slide right in. You also have to take the pinion flange from your current r200 over so the drive shaft will mount properly and the diff cover too. Or you can get the support from Arizona Z car so you can run the diff cover:
http://arizonazcar.com/diffmount.html
There are other cheaper options out there for running the finned cover. Not sure if he's still making these or not:
http://forums.hybridz.org/topic/98295-steel-brace-for-r200-clsd-finned-cover-in-s30-new-list-and-design/?hl=r200

Thanks a lot with that one. And that would be The complete kit. R200 is that the 350z diff. I'm new to this that's y I'm asking all the questions


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The 350Z diff is a short nose diff.  It's not a bolt-in option, you'd have to buy a swap kit, and change the pinion shaft, or modify a driveshaft (you'd need a longer driveshaft anyway because the diff is shorter).  Plus it's a VLSD, which many people feel is a lesser option than a CLSD or Torsen style.  And the VLSD input shafts are a different spline pattern so you'd need new half-shafts.  Lots of money and work involved.

Here's a bolt-in option for your 78 280Z if you have an R200 - http://forums.hybridz.org/topic/121007-mfactory-r200-lsd/page-4

The 350z is not bolt in. The r200 87-89 LSD will be the easiest complete bolt in as a unit. If you want to take the rear end apart you could always do the OBX or quaife. 

The hardest par will be finding a used LSD at a reasonable price.