deja Posted July 30, 2009 Share Posted July 30, 2009 I am putting new 280zxTT CV halfshafts on my 280Z. The one's on there lost one of the boots so I picked up a new set and rebuilt those with new boots. The outboard hats on the ends of these halfshafts do not sit down tight against the MM adatpers. They seem to hit on the end of the stub axle. The CV's that were on the car did not use the hats, just RTV against the MM adapters. Is this the normal install? If so is there an issue with not using the load spring that sits inside the hat? Quote Link to comment Share on other sites More sharing options...
mark Posted July 30, 2009 Share Posted July 30, 2009 Sounds like mine were similar to yours. The interference was less than a half an inch. I got the bolts started and pulled it all together and deformed the metal end cap. It has been fine. If you use RTV to put it together (which I believe would work fine) I would also use the spring. Quote Link to comment Share on other sites More sharing options...
jeffer949 Posted July 30, 2009 Share Posted July 30, 2009 Yeah i just bolted mine together and deformed the metal cap. No issues 5k later Quote Link to comment Share on other sites More sharing options...
deja Posted July 30, 2009 Author Share Posted July 30, 2009 Thanks, that's what I was thinking just wanted to be sure I wasn't making a major mistake. Mine are around 1/8" off so it shouldn't be too tough. Not having the spring in there just didn't seem like a good idea. Quote Link to comment Share on other sites More sharing options...
deja Posted July 31, 2009 Author Share Posted July 31, 2009 I got the long haftshaft together and attempted to install it on the passenger side. I snapped it into the diff, no problem. But pushing on the halfshaft to compress it only allows the bearing race to get past the companion flange. The hat will not clear. I see now why they didn't put the hats on when this was originally done. I jacked the suspension up to its fullest thinking that might give me more room but not really. Any help here is greatly needed, as usual the shop manual is useless. Quote Link to comment Share on other sites More sharing options...
jeffer949 Posted July 31, 2009 Share Posted July 31, 2009 I had to actually take off my control arms to get mine on. Well I just unbolted them from the chassie i didnt take out the spindle pins. Quote Link to comment Share on other sites More sharing options...
deja Posted July 31, 2009 Author Share Posted July 31, 2009 So you just took out the 4 bolts on the bottom of the control arms. This will allow me to move the whole suspension outward? Why do I see impending doom,. No problem with the strut and spring still being attached? I don't have a lot of experience with these suspensions. I had to actually take off my control arms to get mine on. Well I just unbolted them from the chassie i didnt take out the spindle pins. Quote Link to comment Share on other sites More sharing options...
deja Posted July 31, 2009 Author Share Posted July 31, 2009 The secret is dropping the control arms. I supported the diff, pulled the 4 bolts holding the arms which allowed me to move the suspension enough to get the halfshafts to slip into the companion flanges. Thanks for your help. Quote Link to comment Share on other sites More sharing options...
jeffer949 Posted August 1, 2009 Share Posted August 1, 2009 That is what i was trying to say to do. Looks like you got it worked out. Quote Link to comment Share on other sites More sharing options...
deja Posted August 1, 2009 Author Share Posted August 1, 2009 Yep, thanks. After I got under there I could see what you were talking about. I did support the diff before I took the front bolts out when I saw they are the actual frame support for the front diff mount. That is what i was trying to say to do. Looks like you got it worked out. Quote Link to comment Share on other sites More sharing options...
niceguy678us Posted August 1, 2009 Share Posted August 1, 2009 STOP!!!!!! You guys don't have to smash anything. Find a set of 84-89 300zx non-turbo shafts and use the shorter caps and springs from them. There are TONS of these in the yards since no-one wants the regular diffs. They are the same 6 bolt (3 sets of 2) pattern as the 280zx caps except the protruding center is shorter and fits perfectly. There is a picture on here somewhere of the two side by side. Quote Link to comment Share on other sites More sharing options...
deja Posted August 1, 2009 Author Share Posted August 1, 2009 Oh sure now you come up with this, LOL. I was able to get them in without incident after I dropped the A-frame which I assume I would have to do either way. The "smashing" really isn't an issue. My test fit didn't show and real distortion of the hat. Its all done now but I will keep this in mind when I rebuild the other set I have. STOP!!!!!! You guys don't have to smash anything. Find a set of 84-89 300zx non-turbo shafts and use the shorter caps and springs from them. There are TONS of these in the yards since no-one wants the regular diffs. They are the same 6 bolt (3 sets of 2) pattern as the 280zx caps except the protruding center is shorter and fits perfectly. There is a picture on here somewhere of the two side by side. Quote Link to comment Share on other sites More sharing options...
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