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Saxofonist

OBX Differential for R200 Open Diff to LSD Conversion

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Saxofonist    0

Maybe the question I should have asked is, Where do I purchase an OBX differential for an Open R200 Longnose?  I have looked all over the internet, but am a little skeptical that what I am seeing will work with a R200 Longnose.  If you have any tips for me, that would be much appreciated!  Thanks in advance!

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Zipper    2

Maybe the question I should have asked is, Where do I purchase an OBX differential for an Open R200 Longnose?  I have looked all over the internet, but am a little skeptical that what I am seeing will work with a R200 Longnose.  If you have any tips for me, that would be much appreciated!  Thanks in advance!

 

I think they're on Amazon? R200 "longnose" is standard R200, no? I think shortnose has different requirements, but the OBX for R200 should work for your diff I would think. (Disclaimer: Don't have an OBX, have an MFactory).

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jthom5147    1

 

Posted Today, 06:08 AM

Maybe the question I should have asked is, Where do I purchase an OBX differential for an Open R200 Longnose?  I have looked all over the internet, but am a little skeptical that what I am seeing will work with a R200 Longnose.  If you have any tips for me, that would be much appreciated!  Thanks in advance!

 

You buy them on EBay or Amazon, but they may be available elsewhere.

 

Fitment will be required. Depending on whether you're using a 10mm bolt ring gear, 12mm bolt ring gear, and axles will dictate how much additional fitment is required besides following FSM.

i recommend checking R&P wipe pattern and backlash BEFORE and after installing the carrier to check for differences.

If you want longevity, a rebuild of the OBX carrier will be required. Follow the documentation online regarding bolts, helical gear direction, and washer stacks. Parts are available from a vendor ( not from OBX)

I suggest you refresh your differential housing while you're at it (pinion bearings, carrier bearings, seals, lubricant)

Follow the FSM when installing the carrier or outsource it to an appropriate professional

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Saxofonist    0

I have a fully rebuilt R200 Longnose already in the car.  I have a race modified sbc350 and I am very worried about sending all that power to one half shaft.  I have been looking on ebay, and even messaged a seller who then told me it would NOT fit the longnose open R200.  I will keep looking, and I will take a look at the MPower and Quailfe diffs.

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jthom5147    1

That can't be right or they're feeding you BS / CYA.  They all say it will fit an '84 to '89 300ZX which is a longnose. 

E.g. http://www.ebay.com/itm/OBX-ATB-Helical-LSD-Differential-For-91-98-240SX-Silvia-200SX-84-89-300ZX-Z31/232355813843?

 

 

 

They may have told you that because 10mm bolts, but that can be shimmed as I mentioned or as discussed in the install thread here 

http://forums.hybridz.org/topic/88099-obx-differential-inspection-and-installation/

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