81s280zx

i found this rear end in a 1988 300zx turbo just got put out in the salvage yard i came acrossed it and thought isnt that the lsd rear from years 1987-1989 im pretty shure it is but for $45 for it i started to pull it right away. is their any numbers i can check to make shure i really dont know what to look for here are some pics anyone please tell me thanks

NismoPick

$45!!! you gotta be kiddin me!!! That is a score! Is it the Viscous LSD? (if it is, should have an orange tag saying so on the finned cover). Bro.. that is a score of a deal!!!

81s280zx

it doesnt have any tags on it. it looks exactly like all the ones i have seen in pics same fin cover same axles oh ya when you turn one axle and hold the other one at the same time it locks and wont move yeah $45 man i love that salvage yard it only took me about 30 mins to pull it not hard at all i just want to make shure this is one

NismoPick

any other possible LSD's out there?

Heat Rave R

Naw, that's not an LSD differential. Since it's not....out of the goodness of my heart, I'd be willing to take it off your hands.

Bleach

no, no, I'm the one who takes the non LSD rears from the Z31 turbo out of the goodness of my heart. Send me some spare L28 turbo engines while you're at it.

81s280zx

im shure this is the only one at the yard cuz i have been looking for this for awhile as for turbo motors theirs about 3 or 4 out there. there $59 if you pull it any motor in the yard

lww

That's an awesome find dude.

If anyone is interested or frustrated so much that they are tired of looking for a 300ZX Turbo LSD in the Junk Yards...

Reider Racing in Michigan carries the Precision Gear Power Brute LSD assembly (Same as the Turbo 300ZX) for $602.95 + shipping. If you're not in MI, that'll save about $50 in taxes.

This is the 12mm unit that can be fitted out with 2mm spacers to fit in our 10mm R200's.

70-7/76 R180 Part # LOM55E = $458.95
7/76-8/83 R180 Part # LOM55L = $584.95
8/87-8/89 R200 Part # LOM59-12 = $602.95

And they have them in stock.

http://www.precisiongear.com/powerbrute.htm

I can't decide whether or not to go with the R180 and stock 3.36 pinion gears on my 240z or drop in the 3.90 300ZX R200 I've got in the garage with the PG LSD...

I'm thinkin' I'll get mad gas mileage with 3.36 R180 and a stock '83 Nissan 5 speed tranny...

Gear__1st_____2nd_____3rd_____4th_____5th
'72___3.592___2.246___1.415___1.000____N/A
'83___3.062___1.858___1.308___1.000____0.745

Once I upgrade the distributor to an E12-80 and a new 2 stage vacuum advance, I would expect to get 30mpg out of my 33 year old car...

Someday I'll make a decision...

NismoPick

If ya hit up that place again, lemme know if you can get me one. I'll pay ya! I've got another project Z that could use it.

81s280zx

yeah if i find another ill be shure to grab it ill keep a look out. this one is in great cond seals dont leak one bit i took the cover off and no signs of slightest wear on the gears no marks nothing looks like its hardly been used the oil was very clean etc this is going to be a great rear for my v8 swap do i use these axles or half shafts i noticed these axles are alot thicker stronger looking than the ones on my 81 280zx

NismoPick

the 300zx cv's are too long & have a diff flange on them... so your stuck w/ the 280zx ones.

81s280zx

are the half shafts better than the cv axles stronger etc

lww

Yes, the 300ZX Turbo CV axels are stronger than the 280ZX Turbo CV axels. But you'll have to do some fabricating to get the 300zx CV's to work on your 280ZX.

I haven't had any trouble with my 280ZX CV's so far. But I do have 2 spare sets and a set of 300ZX axels in the event I blow the others up.

81s280zx

what about the half shafts from the older 280zx the axles with u joints are those stronger than my 280zx cv axles

lww

Arguably, no. The CV axels are generally the strongest 280ZX axels.

Heat Rave R

How do those items improve gas mileage? (not that I know what they are)

lww

Electronic ignition module from a '79 to '81 280ZX and a two stage vacuum advance module that will pull vacuum from both sides of the carb in addition to the centrifigul advance in the distributor.

Normally, with a single stage vacuum advance, usually pulling from the air box, combined with a centrifugal advance, when you come off idle, the vacuum advance immediately retards and the centrifugal advance kicks in. Unfortunately, there's usually a stumble as the transition is made between the two when too much retard is in play before the centrifugal advance can 'catch-up'.

The beauty of this system is its ability to balance minute vacuum changes generated on both "sides" of the throttle butterfly (live vacuum vs. ported vacuum.)

The result is a constantly changing advance map which retards timing during periods of medium to heavy throttle loads, while allowing the highest advance number to occur only during light cruise throttle loads which will significantly improve fuel economy.

How's that?