I know from converting to cv axles the left side is shorter.

This used to be a hot topic and John Coffey actually measured a bunch of half shafts, compressed, and found that they were all the same length.  He had the work on his Beta Motorsport site for a while and then on a separate Facebook page but I think it's all gone now.  I think the original subject was about why half shafts bind in 240Z when you install an R200.  The question never really got a good answer.  But at least a bunch of half shafts got measured.

One of the Z books, maybe the Humble Restoration book, has a TSB in it about Nissan removing one of the ball spacers in the half shaft so that it would extend further, so a longer shaft suggests a newer half shaft.  But, compressed they're all the same. 

In short, there's not really a left or right shaft.

Thanks ZedHead, I appreciate the information! Maybe I’ll get them in today but will be headed to work soon…so more she’ll be sitting again. I think I predicted this would take 6 weeks to complete…I’m on target. I still have to install the new rear springs and shocks back there..(let’s add 2 week for that). life happens [emoji38]


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I have a question about half shaft lubrication.    I bought a standard hand pump grease gun to lubricate the half shaft joints.  The grease gun fitting it too big to fit into the space where the zerk fittings are.  I looked at three parts stores nearby and all the gun fittings are the same size (Clerk said its the industry standard) as the one I bought.  Not sure if anyone else has run into this.  I wanted to grease this joints up before I install the half shafts.   Anyone ideas.  

Did you replace the u-joints in the shafts?    If so, there is a correct way to orient them to allow for proper access to the zerk.

I have old faded brain cells with a mental picture of a ground down tip on a grease gun in order to be able to fit into the small opening on the half shafts.

In other words... Many moons ago I think I modified a grease gun to be able to get in there. I don't think I have that gun anymore though to confirm.

Some u-joints have a little screw (that you can replace temporary by a nipple) others have a nipple already in them.. I had once the same problem and... you can solve that by buying some extra long nipples!  😉 

After you greased the shafts you put in (back) the little screws to close the holes..

 

(This was a message about greasing shafts,nipples and holes... 🙈 do NOT google  this! 🤣)

I have old faded brain cells with a mental picture of a ground down tip on a grease gun in order to be able to fit into the small opening on the half shafts.
In other words... Many moons ago I think I modified a grease gun to be able to get in there. I don't think I have that gun anymore though to confirm.

Thanks Bruce. I have a table grinder and googles [emoji41]….I’ll give it a go and report back. Hoping to get the new springs in today, we shall see. I have an old flight helmet to protect me if the spring compressor fails [emoji23]. Safety first !


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Some u-joints have a little screw (that you can replace temporary by a nipple) others have a nipple already in them.. I had once the same problem and... you can solve that by buying some extra long nipples!  [emoji6] 
After you greased the shafts you put in (back) the little screws to close the holes..
 
(This was a message about greasing shafts,nipples and holes... [emoji85] do NOT google  this! [emoji1787])

This will be my second solution if grinding the fitting doesn’t work.

Good advice on the good search. I can see the conversation now! “Who was googling “grinding nipples, or greasing nipples”. I have a 15 year old, so it’s no out of the realm of possible.


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2 hours ago, Av8ferg said:

I have an old flight helmet to protect me if the spring compressor fails.

Pics or it didn't happen.   

So removing the rear spring was uneventful. No helmet required. I got one side compete today. When I pulled the old spring and shock off I found an insulator from 260z. The only reason I know that it is because it has yellow writing on from what would be a salvage yard and said “74z. R” see pic.

Height difference seems to be about 1 1/4” lower. Looks better, another 1/2” would have been perfect. I have Eibach springs, and a 240z insulator. See pics below. I think once the car rolls a bit it will sit lower. It just came off a jack so the wheels are still canted inwards.
Also got the half shafts greased up used the Captain Obvious “grind” method. Thanks CO!

Edited May 2, 20222 yr by Av8ferg

Finally got the car on the road today.  Put about 20 miles on it and it ran flawlessly.   Suspension is smooth, I have a small knock on the right rear in need to investigate when I’m bumps but it’s bad.  Otherwise it’s running great.   I need to attack my electrical gremlins next .  Ride height with the Eibachs and Koni’s is perfect in my opinion.   Here are some pics from today.