What's needed for an R200 4.11 differential swap on an '78 280Z?

[PrOxLaMuS©]

just to clarify..

in the U.S.A. all LSD R200's are from 87-89 300ZX correct?

If I were to install, this LSD on my 280Z... what else what I need other than JUST the differential?

[indyzprez]

Prox

Just stick some 16" wheels on with 50 series tires that 4.11 will be just fine.

[Brett240]

Proxlamus,

do you have an R200 open diff installed at the moment? if you do then its a straight bolt in, just check to make sure the flanges for the tailshaft and half shafts are the same as your original diff

[LanceM]

Here's a 3.90 R200 on Ebay

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2434251621

[PrOxLaMuS©]

well.. that 4.11 idea.... not a fan of anymore...

*great acceleration

*high RPM's at high speeds.. equalls higher heat higher engine wear and lower MPG.

so if i stay with my automatic I am going for a 3.7 and a high speed torque converter

or a 4-speed with a 3.9 (can't find a good 5-speed)

[stevegee]

If you check the Nissan 280ZX manual you will find 280ZX 2+2 only had three diffs. 3.7 3.9 and 3.54 and if my memory is correct pinion vs crown were 37:11 37:10 and 39:10. My 280 auto runs 3000 rpm at 100 km/h 4000 rpm at 140 and I run 16x205x55 series and the speedo is spot on.

In the internet pages is a page showing all tyres sizes wheel sizes roling cirumference and speed difference, i just cant find it for you as I have too many short cuts..

[stevegee]

A few half truths exposed here is the chart showing most combinations of most wheels sizes and the tyres to run and the resulting circumference / number of turns per kilomtere.. etc etc http://zhome.com/ZCMnL/WheelSizes.html

[PrOxLaMuS©]

Thread back from the dead...

I don't know if I have an R200.. or an R180...

I have a 1978 280Z with an automatic tranny....

so my differential.. i dunno.. i think it's an open R200

[PrOxLaMuS©]

edit

[Z Kid]

Crawl under and have a look, mind you for you guys the pavement would be cold at this time of year

Good luck

[echocluster]

is the 390 a limited slip diff?