having nismo lsd installed

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Liquidus
Posts: 117
Joined: Thu Nov 27, 2003 5:38 pm
Car: 1990 240sx, 1991 240sx SE

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I am getting a nismo LSD and have a few questions (which i could not find in the forums) about the installation.

First of all is how much the installation should cost. From what i've read it has to be professionally installed. I talked to my dealer that i am buying it from and they didn't seem to know. First they told me they would have to take the transmission apart, then i told them they didn't, its RWD. Eventually they quoted me $500 but said they weren't sure. This seems high to me, but i'm worried about taking such an expensive item to have installed at an independant shop. Especially when i live in indiana and there aren't many performance shops to choose from.

Second, what else should be done. I have read on other posts that you should change the output shaft seal and that the bearings have to be pressed. The output shaft seal i get but i'm not sure what having the bearings pressed means.

Thanks,Rob


blu240hch
Posts: 156
Joined: Mon Jun 14, 2004 1:00 pm
Car: 1991 Nissan 240SX

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Well number 1, I'd be concerned about having this dealership do it. First off YOU have to inform them that it's RWD, that right there sends shivers down my spine. Number 2 they can't give an accurate quote, what kind of nonsense is that? This is a nissan dealership right? They should be able to give you a more definite answer than that.

About the second part of the Q, pressing the bearings in means fitting them to the diff, by means of a "press"... or sometimes brute force. :D

Liquidus
Posts: 117
Joined: Thu Nov 27, 2003 5:38 pm
Car: 1990 240sx, 1991 240sx SE

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Yeah, i had the same concern with the dealership, i just haven't figured out where else i should try yet. Anyone know how much it should cost to have the LSD put in?

Thanks for the info on the second part of my question.

SloS13
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I would say with the right tools its a 1hr job (2 absolute max). Using regular hand tools and a crappy jack, i did mine in 3hrs and thats including switching out the axles.

Do it yourself..save money..but i guess if you can afford a nismo diff, you can afford the labor too ;)

Edit: labor is like $60-$70/hr i believe

Chingon
Posts: 2802
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Car: 1991 and 1992 hatchbacks

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^i'm with this guy. Just take it to a bearing/suspension shop to get the bearings pressed if you are unsure about using a mallet. Buy new seals, and the rest should be pretty easy. Just follow the lsd's break-in instructions, and you should be set.

clearview
Posts: 106
Joined: Thu Aug 01, 2002 7:58 pm

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i would get another rear for your car and install the lsd in it.you will need new bearings $120, output seal $23, and then have the lash set on the carrier. $100. then install the rear. that way you dont have to mess with murphys law.i installed a nismo lsd with nismo4.63 gears. this is a little more involved because the pinion gear is replaced and the depth of that gear has to be set also. i paid a shop 556 to install the gears and lsd. that price was all new bearings and seals . the cost for the set up was 250 and the rest nissan parts.

the install of the lsd is easy there was an article in Sport Compact Car the Silvia project car. you can do it yourself just make sure when you take the rear apart you mark everything so it goes back in the same place (left .right top bottom) they SCC did not set the lash. but if it is off a little you may have a noisy unit after the install. dont forget to put loctite on bolts that hold ring gear to lsd.

i quiksilvr i
Posts: 54
Joined: Wed Mar 10, 2004 5:45 am
Car: Anything..

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What type of NISMO LSD did you get and for how much? I just recently installed my Nismo LSD and was breaking it in yesterday.

The labor took about 4 hours totaly I believe.. I could of been faster but I took a break to eat as well as cleaning up some parts. The pumpkin came out to be silver instead of black! haha.. So now, if you look underneath my car, there's a silver shiny pumpkin. The install was straight forward. Took out the bolts that were holding the outpt shafts together (pain in the a$$ to take those bolts out). Basically just remove the pumkin, get a table and work from there.

And yes, you will need a shop press for the bearings.. and dont rush it, take it slow, you paid good money for this item, dont screw it up by forcing or hammering it.

When LSD is in, turn the shaft to see if both is turning in the same direction, seal it up and your pretty much good to go..

break in period, about 30 mins in figure 8's. Good thing my school have a big parking lot.. the security guy was okay with it, he just drove by like nothing happened.. I didn't get a chance to tested it yet but when I finally broke it in yesterday, i decided to do some donuts and J-turns..

Oh, i got the Nismo GT LSD.. Labor cost= $0, my dad has a shop.

Chingon
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Car: 1991 and 1992 hatchbacks

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clearview wrote:i would get another rear for your car and install the lsd in it.you will need new bearings $120, output seal $23, and then have the lash set on the carrier. $100. then install the rear. that way you dont have to mess with murphys law.i installed a nismo lsd with nismo4.63 gears. this is a little more involved because the pinion gear is replaced and the depth of that gear has to be set also. i paid a shop 556 to install the gears and lsd. that price was all new bearings and seals . the cost for the set up was 250 and the rest nissan parts.

the install of the lsd is easy there was an article in Sport Compact Car the Silvia project car. you can do it yourself just make sure when you take the rear apart you mark everything so it goes back in the same place (left .right top bottom) they SCC did not set the lash. but if it is off a little you may have a noisy unit after the install. dont forget to put loctite on bolts that hold ring gear to lsd.


the nismo kit comes w/new bearings and seals i believe..

i quiksilvr i
Posts: 54
Joined: Wed Mar 10, 2004 5:45 am
Car: Anything..

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I think it depends on the kit?? or the model of LSD you get? Not to sure but when I got mine, it came with everything, new output shafts, oil seals, LSD oil, new gasket, new LSD bolts.. i think that's it, 2 GT LSD stickers.. japanese instructions..

Liquidus
Posts: 117
Joined: Thu Nov 27, 2003 5:38 pm
Car: 1990 240sx, 1991 240sx SE

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Mine is the GT-R LSD, the only one in the nismo catalouge. Dealer is selling it to me for $760. Hmm, from what i read in some posts and the little caption in the catalouge saying "requires proffesional installation", i didn't think i could so it myself. Perhaps i'll look into doing it myself, but I'll probably take it to a professional just to make sure i don't screw it up. I'd rather pay for a shop to do it than have to buy a new one.

I beleive the LSD does come with new seals but i'm not sure about bearings. From the looks of the kit it is the same as i quiksilvr i's. Only it is GT-R instead of GT.

Thanks for the help. It sounds like $500 isn't unreasonable, but i think i'll try and find someplace with experience installing them. Or if i get brave do it myself.

Thanks

thelinja
Posts: 155
Joined: Fri Oct 25, 2002 2:32 pm

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Where in IN do you live? I could offer some advice since I installed an HLSD in my car. $500 is a retarded price, don't even consider that. I only had to take off my exhaust and rear sway bar to get the diff out. As long as the bolts aren't stubborn/rounded, it shouldn't take more than an hour to get the diff dropped and extract the open diff.

Liquidus
Posts: 117
Joined: Thu Nov 27, 2003 5:38 pm
Car: 1990 240sx, 1991 240sx SE

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I live in Greenwood, just south of Indianapolis. The basic procedure doesn't worry so much as the little things like pressing the bearings and whatever setup there is. The dealership said it also has to be set up after the install?? But if you could help me that would be cool. That $500 i'd save could just about buy me some new wheels/tires or exhaust, etc.

I tried looking in the FSM to see if i could find anything about dissasembling the diff or replacing it but couldn't find anything.

It just worries me, i can't take much risk with a $750 part.

Thanks

thelinja
Posts: 155
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Cool, I live in Franklin Twp. which is just north of Greenwood. I say just take the diff pumpkin out yourself, and pull the open diff and replace the side seals first. And then find a decent shop to put the new diff in and get it to spec. A few shops I can think of would be AIM tuning, Modern Speed Labs, and Full Blown Racing. I'm presuming you've been going the Nissan dealer on 31/Stop10 rd.? Don't go there, they are retarded.

You can hit me up on AIM if you want at 'thelinja'

180fan
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send it to a machinist. they should get everything setup properly with the proper tolerances and so on.

Liquidus
Posts: 117
Joined: Thu Nov 27, 2003 5:38 pm
Car: 1990 240sx, 1991 240sx SE

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Yep, thats the one i have been going to. The parts dept there is good, but the service... Thanks for the names of those shops, i'll look those up, and i'll keep your AIM name handy just in case.

Thanks alot everyone.

Fighto78
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Joined: Sat Jun 07, 2003 6:26 pm

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I have a 92 SE coupe and I'm really sick of having a one legger. I'm starting to research LSDs and people have been telling me an LSD is in the range of $300-400. I'm looking to spend about that and put it in myself. Are these LSDs you're putting in for track use or something? What makes them so much better than say the stock LSD that came on 240s? What do you recommend for me?

Thanks

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bcar240
Posts: 1827
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Car: 1993 240SX HB

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The LSD that came stock on some 240s was a VLSD (viscous limited slip diff.) basically with this type of diff you will first lose traction like an open diff, but then the VLSD will kick in and bring it back. The more expensive ones are clutch type or helical, they keep you from ever having "one wheel drive" :D .

Liquidus
Posts: 117
Joined: Thu Nov 27, 2003 5:38 pm
Car: 1990 240sx, 1991 240sx SE

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Yeah, the ones in the $300-$400 range are VLSD's off of factory equiped 240sx's or N/A 300zx or there are a few other nissans/Infinites that had them.

The VLSD take longer to react than the clutch type or helical and tend to wear out quickly with heavy use(the viscous fluid looses it viscosity over time, making it react slower and slower). Plus they are only 1-way, mechanical ones are 1.5-2 way.

I'm choosing a clutch type because it is more ideal for drifting and autocross, which is what i am tuning the car for.

Alot of people put in VLSD because of the price, and you end up with something somewhere in between an open diff and a real deal LSD. If you can't spend alot of money, its your only option.

I'm using half of my "car upgrades" budget on the LSD plus installation , but i think its worth it. The rest goes to suspension, with a few minor engine/interior mods with whats left over.

I could have gotten an SR20 or a turbo kit with what i'm spending, but its just not worth it if i don't have a good suspension/drivetrain, and i couldn't afford both.

ceniack
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[quote=" clearview i installed a nismo lsd with nismo4.63 gears. this is a little more [/quote]where did you get these gears, and how much did they cost?

clearview
Posts: 106
Joined: Thu Aug 01, 2002 7:58 pm

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i got the set from ABC nissan part#38100-05M60 $424.87


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