Ebay OBX LSD Install for the R200 Datsun 280z

Parking lots will be no sweat anymore! Now, with an LSD and power steering, easy!
OBX LSD For 1991-98 240SX/Silvia 200SX (Europe Only) 84-89 300ZX RWD R200 Axle
Not mentioned in video - but don't forget to install the circlips in the diff! I had to go back and do this. Part number: 38225-N3100. NissanPartsDeal.com
Shim contact - Jay Zinc
/ chicagozcar
Diff Mount - www.technovers...
Z31 axle conversion flange - www.silvermine...
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[@30YearOldBunta]

As someone who also makes car videos who also doesn't know what they're doing, I appreciated that intro.

[@StewartMotoring]

😂

[@jerryvelasco1474]

Nice. I was waiting for you to pull out that contact paint/grease. Lot's of guys I see rebuild these and just slap them on without looking at there pattern. I just know you are asking for premature failure, without that last step. Glad you did it, now some of these rookies will know to do it as well. 👍

[@MindDezign]

You say you don't know what your doing. But you educate yourself and research thoroughly, which makes you ,very good !

[@SidewaysGts]

Ive got this lsd in my 240z- have had it in there for over a decade now at this point. Absolutely love it. Definitely take the time/money to upgrade the bolts/washers inside (its cheap to do so as well)-and youll have a solid, well performing diff for the money.

[@johnwooten7775]

Bro I never heard of you before today, but that opening was classic and I needed it this morning. Thank you

[@8145dwerdna]

Surprisingly I've heard good things about those LSD's as long as you upgrade the bolts, those spacers if needed, and thoroughly clean and inspect the LSD.

[@SidewaysGts]

Have had mine for over a decade (with the mentioned upgrades). Definitely approve of it.

[@Liam_RBZ]

@@SidewaysGts What bolts did you upgrade bud? The ones on the ring gear? I need to install the LSD into my r200.

[@SidewaysGts]

@@Liam_RBZ "What bolts did you upgrade bud? The ones on the ring gear? I need to install the LSD into my r200" So to be more specific on mine: I only needed to replace the belleville washers. The washers in question were from McMaster Carr, theyre pretty notorious for having high quality hardware (More on this stuff in a moment). My bolts were all the appropriate size and strength- and didnt actually need replacing. I bought and set my lsd up like 14~ years ago. Back then an "early batch" of the OBX lsds were known to be of lower quality control. The bolts might be varying lengths, they might be of different strengths, etc. Obx has long fixed those issues (though its always worth double checking. I admittedly havent looked into / hear much on their more recent quality). If yours are of varying sized/strengths, order a matching set (again, from mcmaster carr). These early batches also had known quality control issues with the worm gears being in the incorrect orientation, but these were, at least at the time, rare. Again though- always worth checking into (again, more on this in a moment as well) The belleville washers however are the most important bits IMO. At least 10+ years ago, the belleville washers (these are the spring washers in the LSD, you can stack them in various configurations to adjust the preload on the lsd) in the obx unit were rather crappy. They were known to "flatten" and lose their preload quite quickly. The belleville washers from mcmaster are of much higher quality- and last much longer (Mines still great a decade later). Now sadly, as this was over a decade ago when i got these washers... i cant actually remember the specific ones i got. I even just checked my email for you to see if i had a receipt- and amusingly enough i have a confirmation from mcmaster that i bought them (over 12 years ago), but no specifics of what i actually bought (ie no part numbers). However- The guys at HybridZ are basically the pioneers in making these LSDs good. If youre not familiar with them, theyre an old Z car community that is centered around modifying these vehicles. The information on what washers/bolts to get, and how to set these lsds up- I got it all from them. I cant post actual links- youtube will flag/delete it, but you can search google for things like "HybridZ OBX washers". One of the first links that comes up should be a thread by a user named "TrumpetRhapsody" - "OBX Differential Inspection and Installation". He has a LOT more indepth information on these, as well as links to even more information on them. Sadly i cant remember exactly "who" had the information on which belleville washers to get from mcmaster- But that information is there. Its a great place to start :)

[@shaneanderson8358]

Very cool man. Great info all around. 🤟🏼

[@Trumpetmac]

🔥 I did this to my 280zx ls swap, the LSD didn't have cv axle locking clips and the RockAuto 300zx axles didn't either you need to make sure you have them so the axles don't pop out.

[@StewartMotoring]

Is there somewhere for the retainer to seat in the LSD? Otherwise I don’t see how it would help. Even my old (oem) stub axles didn’t have a clip on them. Not saying they didn’t originally but when I pulled them out there wasn’t a clip.

[@Trumpetmac]

@@StewartMotoring the OBX has a retainer slot inside the gears, I Rebuilt my OBX with stronger fastners and belleville washers and noticed that their were no CV locking clips. If you send me an email I'll send some pics. Also if you check your OEM differential you will see the c clips down in the axle holes. I took those out and put them in the OBX, I also ordered a new set of clips

[@StewartMotoring]

@@Trumpetmac would you be able to tell us the part number for these clips? Kinda having a hard time finding the right clip for this diff.

[@SC457A]

A video with a sense of smell right at the start lol!

[@StewartMotoring]

😂 I still have rags that smell like diff fluid

[@SC457A]

@@StewartMotoring 3 automotive odors I wont ever forget. Diff, burnt ATF, and burnt brake fluid.

[@tigersasha559]

super rad car! are you going to be doing a review of the diff after a couple weeks?

[@StewartMotoring]

I’ll do a follow up review but it’s going to take a couple months. Winter is setting in and I’ve got to put the car back together after I painted it. And thank you! Hoping the LSD will stand the test of time.

[@tigersasha559]

@@StewartMotoring awesome! Looking forward to it when it's released. Subbed so I won't miss it

[@sidedraught]

Great video

[@timwing4379]

I agree with you, 100%, on the merit of going with the OBX as a reasonably priced option. Especially if its just a street car. Looks like a good alternative to a diff swap. Any updates? How has it held up?

[@StewartMotoring]

Held up great so far, many many street and highway pulls. No digs or burnouts specifically yet, but I have broken the tires lose during pulls many times. Pulls straight. No issues. Probably time to pull the cover off and check tolerances again honestly.

[@khanphethkhamsombath1593]

great video👍👍👍

[@williamandrews1683]

Should have checked backlash before you pulled it apart. Gears need to be setup the same way they were.

[@brycedessert]

Did you ever end up figuring out what the deal was with the locking circlips/retainers? Does the obx have them inside or did you have to remove them out of the open diff and install them ?

[@StewartMotoring]

OBX did not have them in. So I bought the circlips for my axles, removed axles from the car, installed into diff. It wasn’t easy or fun while dif was in car but I did it

[@Stevesbe]

I wonder how that diff would have held up to my 800 hp nitrous sbc in my old 260z. I never had a problem with the welded r200 but it was mostly just a drag car

[@StewartMotoring]

I’d be comfortable with the diff, but the outer spindle/stub would have been the weak point. (Part that the wheel studs are apart off) Seen them break at 500hp.

[@SpoolyWAJ]

i've been eyeing an OBX diff for my car but the internet hates them (says they are garbage/blow up) I am considering it again now after seeing this video. The OEM upgrade lsds for my car are going for nearly 800 now and i was wondering if this would would be a reliably cheaper option

[@StewartMotoring]

Through my research I didn’t find many haters on the obx lsd. Atleast not the one for the r200. Many just complained about the washers. Seems like many run the obx and have had good luck, which is why I got it. Without knowing anymore than just price for your situation… I feel for 300 more bucks just get the oem lsd upgrade. But if money is really tight then obx is probably fine. I just don’t know. I didn’t have any options like that. It was either obx for 500 or spend like 2k.

[@relif.8937]

this would work with the z31 r200 right?

[@sullivandesignccs]

Is that OBX helical style?

[@richtodaro9919]

I have an r200 with 300zx half shafts. My passenger half shaft is making a popping noise and seems not to lock in all the way to the rear diff. Someone said that I need to have a retaining ring in the side. I bought one but I am not sure how to install it? Do you have any thoughts on this?

[@StewartMotoring]

Yea, I installed retaining clips after this video for that reason. It was pretty difficult to do with the diff in the car still but I pulled out the axles and used long screw drivers to push the circlip into the groove in the diff where it’s supposed to be.

[@richtodaro9919]

@@StewartMotoring I was wondering how to get those clips in there and if there was a tool?

[@StewartMotoring]

No tool. It’s just a ring with a cut in it. Just use pliers and slide it in, then you can get a socket the size of the clip and hammer it back in there. It’s not hard per say, it’s just tedious.

[@richtodaro9919]

@@StewartMotoring thanks, I didn't think of using a socket!!!

[@TrianerThaiJitsu]

​@@richtodaro9919 used a pipe to punch mine in in less than a minute.

[@chrisstewart7198]

Hows the 10 month update on this? Everything still good with your install, any other tips/tricks?

[@Texas_Road_Warrior]

Doesn’t matter anymore… they’re discontinued everywhere I look for them

[@SidewaysGts]

@@Texas_Road_Warrior "Doesn’t matter anymore… they’re discontinued everywhere I look for them" You can find these diffs all over ebay still, granted they go for about 550 bucks (at the time of me writing this comment, October 2022)

[@SidewaysGts]

And just to add some feedback for Chris- Ive had my OBX lsd for over a decade now. holding up great. Definitely replace the bolts / washers with upgraded ones, and youll have a solid diff for a long time that works great at putting power down.

[@StewartMotoring]

Didn’t see this sorry. It’s doing good. Still pulling hard

[@relif.8937]

@@Texas_Road_Warrior all over ebay bud, $216 dollars too