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rabrooks

How do I convert the half shafts to CV joints, Brake and tire ??

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Posted (edited)

SO I want to modernize my project a little as I go. I want to use CV joint half shafts. Whats the best way to go about making the conversion. I have heard about getting other diffs like out of an Infinity and using the half shafts that come with those diffs. Any help is appreciated. My car is a 75 and I believe it has the R200 diff with a 3.54 ratio.

Any thoughts on modernizing other parts is appreciated as well. The car is being built as a Track Day car.

 

I want to upgrade the brakes as well. I want to install as big and wide wheels as is reasonable the then flare the panels to cover teh tires. What sizes seem to provide the best look and performance.

 

Thanks

Roger

Edited by rabrooks

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You need a conversion flange or adapter on the wheel side to bolt the CV shaft to.  The splined end will slide and clip in to your R200 diff, if you use a Datsun CV shaft.

 

One choice you need to make is about the CV shaft.  It's pretty well documented that the 300ZX CLSD shafts are too long.  So if you choose that option you need to buy CV shafts also.  Or you can try to find 280ZXT shafts, which seem to fit with no modifications.  Or you can get Porsche 930 style CV shafts, but that requires a different conversion axle or adapter.

 

In the end, after all of the money and time, you won't have much better strength or performance (smoothness) than the stock u-joint shafts.  But many people do it.

 

http://www.chequeredflagracing.net/Datsun.html

 

https://zcardepot.com/billet-aluminum-axle-adaptors-930-cv-240z-260z-280z.html

 

http://www.wolfcreekracing.com/index.php?option=com_content&view=article&id=72&Itemid=61

 

http://www.driveshaftshop.com/import-axles/datsun

 

 

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23 hours ago, NewZed said:

You need a conversion flange or adapter on the wheel side to bolt the CV shaft to.  The splined end will slide and clip in to your R200 diff, if you use a Datsun CV shaft.

 

One choice you need to make is about the CV shaft.  It's pretty well documented that the 300ZX CLSD shafts are too long.  So if you choose that option you need to buy CV shafts also.  Or you can try to find 280ZXT shafts, which seem to fit with no modifications.  Or you can get Porsche 930 style CV shafts, but that requires a different conversion axle or adapter.

 

In the end, after all of the money and time, you won't have much better strength or performance (smoothness) than the stock u-joint shafts.  But many people do it.

 

http://www.chequeredflagracing.net/Datsun.html

 

https://zcardepot.com/billet-aluminum-axle-adaptors-930-cv-240z-260z-280z.html

 

http://www.wolfcreekracing.com/index.php?option=com_content&view=article&id=72&Itemid=61

 

http://www.driveshaftshop.com/import-axles/datsun

 

 

 

I make weld on adapters now that basically do not add any width to where the stock square companion flange sits. You even need to lightly grind the stub axle so it's flush with the companion flange. I ran both sides through their entire suspension travel. Contrary to popular belief, the axle is tightest and most likely to bind at full droop. Even with my adapters, both sides need the CV cages flipped to be safe. The adapters also work with the Rock auto reman z31 turbo axles, though they are not nearly as strong as the OE nissan ones. They in turn use the 280zx tripod style CV and there is no cage to be flipped. Luckily they are ever so slightly shorter and still work with the adapters.

I'll try and get a for sale post or thread up one of these days. Can find me on DPAN.

 

Mark

IMG_0255.JPG

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On 5/26/2018 at 1:21 AM, mtnickel said:

 

I make weld on adapters now that basically do not add any width to where the stock square companion flange sits. You even need to lightly grind the stub axle so it's flush with the companion flange. I ran both sides through their entire suspension travel. Contrary to popular belief, the axle is tightest and most likely to bind at full droop. Even with my adapters, both sides need the CV cages flipped to be safe. The adapters also work with the Rock auto reman z31 turbo axles, though they are not nearly as strong as the OE nissan ones. They in turn use the 280zx tripod style CV and there is no cage to be flipped. Luckily they are ever so slightly shorter and still work with the adapters.

I'll try and get a for sale post or thread up one of these days. Can find me on DPAN.

 

Mark

IMG_0255.JPG

I expect this is the route I will go. I'll use the Z31 axles and your flange adapter. The the diff end pretty much takes care of itself. and the outer end bolts to the adapter flange? Are you saying the 930 axles are the correct length or does the adapter make up some difference. I thought the cv setup might be lighter and more mechanically efficient.That's mostly what I was interested in.

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