Ereschkigal Posted February 20, 2014 Share Posted February 20, 2014 Hi I have searched quite a bit but maybe its just my bad English knowledge or I just don't fully understand it. Because of some stupid regulations (TÃœV - Germany) I need all moving parts of the 280zx rear drivetrain in my 1973 240z. Can you tell me what parts do I need and from which year to get that realized. R200 mustache bar from 280Z with R200 yoke (companion flange) from 280Z with R200 #how many bolts? R200 rear cover from 280Z or ZX with R200 2x 280ZX CV halfshafts 2x 280ZX stub axles 2x 280ZX stub axle companion flanges Does this work with the other parts of the 240z and am I missing something or is this everything? Thanks Ereschkigal Quote Link to comment Share on other sites More sharing options...
Miles Posted February 23, 2014 Share Posted February 23, 2014 (edited) http://www.geocities.com/jasonparuta/diffswap.html http://www.zhome.com/ZCMnL/tech/R200.htm Edited February 23, 2014 by Miles Quote Link to comment Share on other sites More sharing options...
RB26powered74zcar Posted March 3, 2014 Share Posted March 3, 2014 I think between using GOOGLE, and the searching of this forum, reading posts in the Drivetrain section, and clicking the links in the above post, you should have most of the info you need. Someone here may help you out further. Be patient.... Quote Link to comment Share on other sites More sharing options...
Ereschkigal Posted March 3, 2014 Author Share Posted March 3, 2014 Thanks for reopening. What I read/found so far is the R200 swap and the CV axle swap but will the 280zx stub axle fit the 240z reat strut? Quote Link to comment Share on other sites More sharing options...
Miles Posted March 4, 2014 Share Posted March 4, 2014 (edited) Using Google I found this: http://forums.hybridz.org/topic/103344-280zxt-stub-axle-cv-swap/ It looks like the hub bore diameters differ between the 240Z - 280Z and the 280ZX. You may have to get a 240Z - 280z stub axle and a 280ZX stub axle and compare all of the dimensions including length. bearing diameters and hub inner diameters. Anyone have AutoCad drawings of these stub axles? Do you have any idea why the rules require you to use 280ZX components? Makes no sense. Why can't you just leave the differential stock? Edited March 4, 2014 by Miles Quote Link to comment Share on other sites More sharing options...
Ereschkigal Posted March 4, 2014 Author Share Posted March 4, 2014 (edited) I want to use the 280ZX drivetrain to apply rules, which I can't with the 240z drivetrain. In Germany we need an expertise/approval for every change we make on the cars. To use the wheels I want (with negative offset), I would need to pay 15.000$ for the expertise for the 240z and the expertise could say, I can't use them... Someone already made the expertise for the 280ZX but I can only use this expertise when I use the same parts as the 280ZX As I said, I have three possibilities: Stock 240Z drivetrain = max wheel offset is 0 + I can't attach these lovely ZG Flares because they would look stupid 280ZX drivetrain = max wheel offset -25 + flush with ZG Flares Stock 240z drivetrain and wheel offset -25 + ZG Flares = driving around illegally Miles thanks for the link. It says the 280ZX stub axle wont fit the 240z strut, but could be bored to the right diameter. <- Would be illegal too. Edited March 4, 2014 by Ereschkigal Quote Link to comment Share on other sites More sharing options...
Miles Posted March 4, 2014 Share Posted March 4, 2014 Realistically, given the constraints, you will have keep the car stock. Quote Link to comment Share on other sites More sharing options...
davek Posted March 4, 2014 Share Posted March 4, 2014 (edited) The 280ZXT companion flange will fit the 240Z stub axle. I just did it a couple months ago. You just need a different size grease seal. I bought the seal at a local industrial supply company for like $8. In Nashville it was called Motion Industries. I have the seal size at home. Let me know if you need it. it's metric size. FYI The concern/discussion using R200 diff with 280ZXT drive axles and companion flange is that the drive axles are too long and will bind. After I assembled mine I put them in the car minus the coil spring. I moved the strut throught the entire motion to see where the binding was/is. I found with the strut completely extended there is binding. I could still rotate the tire but could see and feel the suspension geometry giving and flexing. When the strut is compressed so the drive axle is straight "level with ground" I could sense no binding however I could not feel any back & forth movement in the drive axle. There is maybe 1/16" movement at "normal ride height". You want some movement. My car is not driveable at this point so I cannot try a road evaluation. I suspect when the strut is completely extended, the drive axle angle is too great and the shaft is binding on the CV hub. The best way to prove this is to disassemble the boot from the CV joint and look for marks. Hate the thought of removing by brand new boots. While turning the wheel it has a lumpy feeling which might be explained by the CV hub having channels for the CV end to ride in. The channels, space, channel, space, channel space might provide this lumpy feel as the axle rides against the hub. Maybe my mind wonders too far. What I may do and I read this somewhere. Machine a new "C" clip ring on the shaft ends further up the shaft "X" amount. and remove "X" amount off both ends of each shaft. "X" amount is the amount the spline will allow you to push the CV end further on the shaft. 1/4" on each would be nice I would think. This will help add some shaft play throughout the strut motion but will not solve the full extend binding. I wish I new My shafts have a "C" clip goove but no retainer clip present. I suspect cutting off a 1/4" wouldn't require a new groove or retainer clip. But it's your shaft. Edited March 4, 2014 by davek Quote Link to comment Share on other sites More sharing options...
Miles Posted March 4, 2014 Share Posted March 4, 2014 davek He needs to use all of the moving parts from a 280ZX including the stub axle. Quote Link to comment Share on other sites More sharing options...
NewZed Posted March 4, 2014 Share Posted March 4, 2014 I saved a couple of links about the use of the 25 spline ZX axles in the 240Z struts. You'll have to read through to figure out the details, their focus was on the 4 bolt turbo CV axles. But I think that the 6 bolt (3x2) NA CV axles also use a 25 spline axle, just a different companion flange. http://www.zhome.com/rnt/FordPower/HalfShaft.html http://alteredz.com/240ZCVHalfshaftConversion.htm Quote Link to comment Share on other sites More sharing options...
davek Posted March 4, 2014 Share Posted March 4, 2014 ya I caught that How would they know with that companion flange in there. That seal is 40 x 72 x 10. $10 each I'll bet you can find it cheaper. Quote Link to comment Share on other sites More sharing options...
Ereschkigal Posted March 6, 2014 Author Share Posted March 6, 2014 Thanks for the info guys. Quote Link to comment Share on other sites More sharing options...
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