Hooke Jjoint Driveshaft - why?

PostPost by: vincereynard » Sat Nov 07, 2015 10:34 am

It's a mystery to me!

This is a serious question and not an attempt to rattle any chains. I simply do not understand why anyone would
choose to fit hooke joint shaft, with the unavoidable addition of nasty sliding splnes, when a proper CV joint driveshaft is available for much the same price.

The CV joint was developed, as far as I know, to correct the horrors that hooke joints cause on FWD cars. They may be OK (ish) in situation where the angles involved are small and not particularly variable - such as a Pro. shaft. The deflection of Elan driveshafts are not small.

What am I missing? Why does anyone bother with them when an far superior alternative is available?

P.S. Sorry about the typo in the heading, I'm stuck with only using my left for a while! (Which is far trickier than one
would imagine unless experienced!)
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PostPost by: rgh0 » Sat Nov 07, 2015 10:43 am

They are required if you are running a FIA compliant 26R clone type racing series. Beyond that I agree CV's are a superior modern solution to Donut problems but some people just like something more original and from the period.

cheers
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PostPost by: Matt Elan » Tue Nov 17, 2015 2:56 pm

What Rohan says, and my brother in law did some research recently and found (in the UK) that having a two UJ plus sliding joint drive shaft made up by a prop shaft specialist near Heathrow was significantly cheaper than a two CV shaft. Money talks!
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