dabay209 Posted June 16, 2010 Share Posted June 16, 2010 (edited) so im new to this site and dont really know that much on how to navigate. i have looked through and read the pined topics on this in the drivetrain section and used the sites search bar and have used google as well. so let it be known since apparently this site is big on flaming newbs or so i hear. i am trying to locate a r200 lsd for my step dads 72 240z and did some research and found all this out. http://www.zhome.com/ZCMnL/tech/R200.htm http://zhome.com/ZCMnL/tech/GearRatios.html http://webspace.webring.com/people/ui/inverse/diffswap.html in the links i have provided i still have questions that are unclear. 1) in the 80 280ZX (2X2) MT and 81-83 non-turbo MT 280ZX's did they all come with r200's or was it a dealer option (did they come with different diffs)? 2) what type of lsd is it? looking at it the diff looks like its an open diff. and in the 280Zx'S that i have found in the junk yards both wheels dont spin the same direction so are they supposed too? or is that for CLSD? 3) the "half shafts" that i keep reading about are going to be different on the donor with the r200 and can be taken out and the regular ones from a older zx is the ones i would want right? some ppl say i need a adapter and some ppl say the older gens will work. 4) i found a 86 turbo Z31 and was wondering if that would work or if a 300zx r200 would work the same as a 280zx r200 as long as i get the mustache bar from the older 280zx. 5) do they always have fins for the back cover? ok and a fyi i really tried to get all the info i could. im only 17 and havent been working on cars for my whole life. just looking for some help. so please if u comment and i have missed something from this research let me know. and do they really look like this with the back open? Edited June 16, 2010 by dabay209 Quote Link to comment Share on other sites More sharing options...
Six_Shooter Posted June 16, 2010 Share Posted June 16, 2010 The Mustache bar you need is from a 280Z, not ZX. I believe all 280ZXs had the R200, I haven't seen any information otherwise. I don't believe any of them were LSD though. The 300ZX R200 will also work. The mount on the diff cover is what changes between the 280Z, 280ZX and 300ZX. I have seen some mention of the prop shaft flange being different on some models. I didn't find this to be the case in my swap, but I might have just got lucky on that one. The diff I am using came from an '81 280ZX. The hardest part I found was getting the R200 Mustach bar in, or maybe it was getting the R180 mustache bar out, in any case I had to remove at least part of the rear support brackets for the control arms, so I removed all of it, to clean and paint those parts. The 280ZX R200 should be able to use the original half shafts. IIRC, the 280ZX shafts were identicle to my 240Z shafts. Quote Link to comment Share on other sites More sharing options...
hoov100 Posted June 16, 2010 Share Posted June 16, 2010 You got me on a good day.. The 280zx never got any form of LSD. The only LSD that is somewhat strait bolt in, is the diff from a 4/87 turbo 300zx. Quote Link to comment Share on other sites More sharing options...
dabay209 Posted June 16, 2010 Author Share Posted June 16, 2010 The Mustache bar you need is from a 280Z, not ZX. I believe all 280ZXs had the R200, I haven't seen any information otherwise. I don't believe any of them were LSD though. The 300ZX R200 will also work. The mount on the diff cover is what changes between the 280Z, 280ZX and 300ZX. I have seen some mention of the prop shaft flange being different on some models. I didn't find this to be the case in my swap, but I might have just got lucky on that one. The diff I am using came from an '81 280ZX. The hardest part I found was getting the R200 Mustach bar in, or maybe it was getting the R180 mustache bar out, in any case I had to remove at least part of the rear support brackets for the control arms, so I removed all of it, to clean and paint those parts. The 280ZX R200 should be able to use the original half shafts. IIRC, the 280ZX shafts were identicle to my 240Z shafts. wow that was fast. thanks for the info man. sooo without getting flamed lol i know the from what i red the R200s are almost indestructible but if there not lsd why do people say this is the best swap for the car? and to add to that why do people say that both wheel spin in the same direction? i thought only lsds did that??? Quote Link to comment Share on other sites More sharing options...
dabay209 Posted June 16, 2010 Author Share Posted June 16, 2010 You got me on a good day.. The 280zx never got any form of LSD. The only LSD that is somewhat strait bolt in, is the diff from a 4/87 turbo 300zx. oh ok so the info ive been reading from other sites must be unreliable which is good to know. ill stick to this site from now on. and so since its not lsd both wheels wont spin in the same direction when off the ground correct? and when you mean direct bolt on you mean the unit itself will go into the r200 casing? sorry for the newbness im trying guys. lol Quote Link to comment Share on other sites More sharing options...
Geking Posted June 16, 2010 Share Posted June 16, 2010 oh ok so the info ive been reading from other sites must be unreliable which is good to know. ill stick to this site from now on. and so since its not lsd both wheels wont spin in the same direction when off the ground correct? and when you mean direct bolt on you mean the unit itself will go into the r200 casing? sorry for the newbness im trying guys. lol Both wheels will only spin in the same direction if the car is out of gear. Yes, you will take the cover off, undo the 2 caps on the sides, pull everything out, take off the ring gear, press bearings onto the LSD carrier if it does not already have them, put the ring gear on the LSD, then reasemble. There is info on how to swap an LSD into your dif as well as what a LSD diff looks like in this subform. Quote Link to comment Share on other sites More sharing options...
B00STDZ Posted June 16, 2010 Share Posted June 16, 2010 87-89 300zx turbos had the r200 lsd. Take the diff out of one of those, clip in 280z half shafts, change the driveshaft end to a 280z r200 and use a 280z r200 mustach bar and your good to go. Quote Link to comment Share on other sites More sharing options...
Gritz Posted June 16, 2010 Share Posted June 16, 2010 87-89 300zx turbos had the r200 lsd. Take the diff out of one of those, clip in 280z half shafts, change the driveshaft end to a 280z r200 and use a 280z r200 mustach bar and your good to go. good luck finding one of those diffs.. Quote Link to comment Share on other sites More sharing options...
dabay209 Posted June 16, 2010 Author Share Posted June 16, 2010 87-89 300zx turbos had the r200 lsd. Take the diff out of one of those, clip in 280z half shafts, change the driveshaft end to a 280z r200 and use a 280z r200 mustach bar and your good to go. thanks to everyone for the help i appreciate it. Quote Link to comment Share on other sites More sharing options...
FlatBlack Posted June 16, 2010 Share Posted June 16, 2010 good luck finding one of those diffs.. That's a relevant post The cheapest route would be to upgrade to a R200 and get a LSD carrier [unless you can find a later Z31 Turbo LSD as stated above] Read through these as well if you're looking for LSD options http://forums.hybridz.org/index.php?/topic/49194-differential-cv-lsd-hp-torque-r160-r180-r200-r230-diff-mount/ http://forums.hybridz.org/index.php?/topic/57834-obx-vs-quaife-with-pixors/ Some of us have gone the super cheap route and bought the OBX carrier for the R200 on ebay, and modified it. http://forums.hybridz.org/index.php?/topic/88099-obx-differential-inspection-and-installation/ Good luck on the search. Quote Link to comment Share on other sites More sharing options...
Six_Shooter Posted June 16, 2010 Share Posted June 16, 2010 That's a relevant post The cheapest route would be to upgrade to a R200 and get a LSD carrier [unless you can find a later Z31 Turbo LSD as stated above] Read through these as well if you're looking for LSD options http://forums.hybridz.org/index.php?/topic/49194-differential-cv-lsd-hp-torque-r160-r180-r200-r230-diff-mount/ http://forums.hybridz.org/index.php?/topic/57834-obx-vs-quaife-with-pixors/ Some of us have gone the super cheap route and bought the OBX carrier for the R200 on ebay, and modified it. http://forums.hybridz.org/index.php?/topic/88099-obx-differential-inspection-and-installation/ Good luck on the search. this piqued my interest, but I didn't find an OBX LSD, on FleaBay or open interweeb. Are we sure they are still available? Quote Link to comment Share on other sites More sharing options...
dabay209 Posted June 18, 2010 Author Share Posted June 18, 2010 (edited) That's a relevant post The cheapest route would be to upgrade to a R200 and get a LSD carrier [unless you can find a later Z31 Turbo LSD as stated above] Read through these as well if you're looking for LSD options http://forums.hybridz.org/index.php?/topic/49194-differential-cv-lsd-hp-torque-r160-r180-r200-r230-diff-mount/ http://forums.hybridz.org/index.php?/topic/57834-obx-vs-quaife-with-pixors/ Some of us have gone the super cheap route and bought the OBX carrier for the R200 on ebay, and modified it. http://forums.hybridz.org/index.php?/topic/88099-obx-differential-inspection-and-installation/ Good luck on the search. ok so i found a z31 ss but the guy down the street doesnt want to part it out =( so i was thinking about just buying the car and parting it out. dont know the demand on these parts the guy wants 800 for it and its salvage title. lmk what you guys think. to me i would be taking the only part of interest to get my money back. but then again i dont know the market value for these parts. i can also get a 87 turbo lsd for 400 but however from what ive read there is a lot of debate on which one is better vlsd from the ss or the clsd from the regular turbos. so lmk what you guys think. Edited June 18, 2010 by dabay209 Quote Link to comment Share on other sites More sharing options...
B00STDZ Posted June 19, 2010 Share Posted June 19, 2010 $800! Wow, just the rear end is worth that. But please remember. the 88 300zx ss had VLSD R200's which require the use of the whole diff and cv shafts. To use the cv shafts you must purchase this adapter http://www.modern-motorsports.com/catalog/product_info.php?cPath=32_53&products_id=56 Anyways good luck. If it were me i would look for a 87-89 turbo with the clsd as you can use the stock 280z halfshafts with it. It would be alot cheaper. Quote Link to comment Share on other sites More sharing options...
SATAN Posted June 27, 2010 Share Posted June 27, 2010 ok so i found a z31 ss but the guy down the street doesnt want to part it out =( so i was thinking about just buying the car and parting it out. dont know the demand on these parts the guy wants 800 for it and its salvage title. lmk what you guys think. to me i would be taking the only part of interest to get my money back. but then again i dont know the market value for these parts. i can also get a 87 turbo lsd for 400 but however from what ive read there is a lot of debate on which one is better vlsd from the ss or the clsd from the regular turbos. so lmk what you guys think. Hmm, that is bizarre. I don't know what the debate would be about. In my opinion the CLSD is better than the VLSD. The CLSD is less likely to be worn out, it is rebuildable, you can modify it to be stronger, it is less likely to wear out, and it doesn't require any special half shafts. I would go the 87 turbo LSD that you mentioned. Oh and as far as the wheels spinning the same direction or not. Someone said only if the car is out of gear. I don't know why you would try with the car in gear but... On a CLSD, both wheels should spin the same direction. If they don't, then it most likely is not a CLSD, or if it is, then it is somehow broken (doubtful). If you are looking at the z31 series, then anything with a finned aluminum diff cover has a CLSD, as long as someone didn't just put a finned cover on to be cool. The 88ss... If you have the time, the car is worth picking up for $800. If you are looking at parting it out, go to z31performance.com Obviously lots of z31 guys there. People love them some 88SS's. Quote Link to comment Share on other sites More sharing options...
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