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Flexy CV joints

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GRVIT

Re: Flexy CV joints
« Reply #15 on: September 30, 2004, 03:36:15 PM »
I guess its difficult to find CV shafts  that will have more than 25 degrees angle in the inner CV side cause 99% are tripod type,which doesnt allow more than 20-25 degrees angle.Only the outer CV (Rzeppa type-balls in cage assembly) allows much bigger angles due to wheel turning operation angles.

I guess we have to look for just stronger ones.

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Offline explosivo

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Re: Flexy CV joints
« Reply #16 on: September 30, 2004, 04:10:12 PM »
If wild's idea pans out as feasable, and I try it, all I'll need is the more-flexible outer joints ;)

EDIT: fixed for clarity ;)
« Last Edit: September 30, 2004, 04:50:41 PM by explosivo »
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GRVIT

Re: Flexy CV joints
« Reply #17 on: September 30, 2004, 04:39:25 PM »
Its a very good idea.An outer CV at both sides will be good cause the angles will be far more better than the stock CVs.But I dont think that an outer CV at the inner side will be so strong to be able to stand  the stress there.I believe that the tripod type inner CV is more appropriate for that side.
But .....I m not a mechanic.....

The only CV s that I saw and that can operate at even 40 degrees angle are the ones ATV use.But I dont know what type of joints they have at each side.
http://www.yaskyatv.com/prod/sus/goraxl.html
« Last Edit: September 30, 2004, 04:50:56 PM by GRVIT »

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Offline explosivo

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Re: Flexy CV joints
« Reply #18 on: September 30, 2004, 04:48:47 PM »
Quote
Its a very good idea.An outer CV at both sides will be good cause the angles will be far more better than the stock CVs.But I dont think that an outer CV at the inner side will be so strong to be able to stand  the stress there.I believe that the tripod type inner CV is more appropriate for that side.
But .....I m not a mechanic.....

The only CV s that I saw and that can operate at even 40 degrees angle are the ones ATV use.But I dont know what type of joints they have at each side.

Really, for the application needed here, they wouldn't have to be at 40* all the time, just during extreme droop/uptravel, since it would be at a more neutral angle during normal operation (on flat surfaces).

Why don't you think an outer joint would work on the inside position? You said yourself that the outer joint gets a lot more use/range of motion... why don't you think it can handle a static position where it doesn't have to flex on a horizontal plane?

Plus, the outers and inners are at opposite angles anyway... (for example: when the outer is at 30*, the inner is at -30*).



EDIT: Nevermind, I misread you, and in my previous post meant "outer", not inner ;)

Kinda proved your point over again ;D
« Last Edit: September 30, 2004, 04:50:11 PM by explosivo »
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Offline wildgoody

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Re: Flexy CV joints
« Reply #19 on: September 30, 2004, 07:38:16 PM »
The inner and outer CVs are of the
same type construction, the difference
being the inner CV has the cup, which is
the limiting factor.

The mod will require cutting and welding
a fixed flange onto the axle to bolt the CVs
up to, The left (drivers in US) side has a flange,
and will work fine for the mod, the short stubby
axle will need the hack, weld treatment, tho
this should be no problem, there have been several
welded axles, I having one of them, on this forum
with no problems as to date.

The second half of this mod requires the cutting
of the spline/shaft off of the outer CV and a flange
welded there too, these two flanges will now get
bolted together.

Wild

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Offline Cwkick

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Re: Flexy CV joints
« Reply #20 on: October 01, 2004, 02:00:37 AM »
VolksWagon uses ball and cage type CV joints.  Many VW's are pretty powerful so the joints should be strong.  Has anyone looked into those?

Cwkick

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Offline whitfield

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Re: Flexy CV joints
« Reply #21 on: October 01, 2004, 02:56:05 AM »
What are the sports car RWD CV applications  ???  RX-7, Nissan 240, Corvette, ect.   Doubt that they have near the needed range of motion on non steering wheels but I'll bet that they are strong as heck.  

Hmm, I'd like to find a technical CV joint discussion somewhere.   Makes, models, designs, radical innovations ect.


Maybe I need to look for set of Cadillac CV's
1976 Cadillac Eldarodo Front wheel drive V-8 500 CID 496 ft# of torque at 2000 RPM's  ahhhh.    Hybrid beef.  But Probally weigh more then the complete Kick rear.
« Last Edit: October 01, 2004, 03:00:16 AM by whitfield »
Old Dog looking to learn some new tricks. 


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Offline explosivo

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Re: Flexy CV joints
« Reply #22 on: October 01, 2004, 04:30:28 AM »
Quote
The inner and outer CVs are of the
same type construction, the difference
being the inner CV has the cup, which is
the limiting factor.

The mod will require cutting and welding
a fixed flange onto the axle to bolt the CVs
up to, The left (drivers in US) side has a flange,
and will work fine for the mod, the short stubby
axle will need the hack, weld treatment, tho
this should be no problem, there have been several
welded axles, I having one of them, on this forum
with no problems as to date.

The second half of this mod requires the cutting
of the spline/shaft off of the outer CV and a flange
welded there too, these two flanges will now get
bolted together.

Wild


Now, just out of curiosity, has anyone here broken an outer joint, or have all the problems been with the inners (I know all mine have)?
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Offline 1bigtracker

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Re: Flexy CV joints
« Reply #23 on: October 01, 2004, 04:36:33 AM »
Vettes have Dana 44's and they are made of aluminum(sp) so it would be light, but using Chebby parts on anything in our shop is not allowed ;D

stu
   

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Offline explosivo

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Re: Flexy CV joints
« Reply #24 on: October 01, 2004, 04:39:40 AM »
Quote
Vettes have Dana 44's and they are made of aluminum(sp) so it would be light, but using Chebby parts on anything in our shop is not allowed ;D

stu

Probably would start to break the 'cheap' rule in my 'shop' as well ;)
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Offline wildgoody

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Re: Flexy CV joints
« Reply #25 on: October 01, 2004, 04:42:23 AM »
I think Zig popped an outer
CV but I have only scattered
the inner cage, the joint and
CV balls were fine, new cage
and I was back on the road.

I carry a spare cage just in
case now, so I can do a trail
repair if need be

Wild
Real Trucks Are Built, Not Bought,
And Chrome Don't Get Ya Home.  

An armed man is a citizen. An unarmed man is a subject.

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Offline explosivo

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Re: Flexy CV joints
« Reply #26 on: October 01, 2004, 04:46:36 AM »
Quote
I think Zig popped an outer
CV but I have only scattered
the inner cage, the joint and
CV balls were fine, new cage
and I was back on the road.

I carry a spare cage just in
case now, so I can do a trail
repair if need be

Wild

That makes me wonder if doing the slip shaft idea with stock outers would be worth it, or if it would be more beneficial to get beefier outers from a toyota or something :-/
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Offline mbmarkyb

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Re: Flexy CV joints
« Reply #27 on: October 01, 2004, 04:55:08 AM »
ok silly question time , is it driver side or passenger side that is strongest  
Markyb (UK)
UK Vitara JLX SE

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GRVIT

Re: Flexy CV joints
« Reply #28 on: October 01, 2004, 05:07:12 AM »
Quote
The inner and outer CVs are of the
same type construction, the difference
being the inner CV has the cup, which is
the limiting factor.
........................
Wild



Well the stock axle shafts my sidekick has ,have a tripod inner CV joint and a balls-cage outer CV.These axle shafts are Spanish made,the ones you are talking about are Jap made.
and here they are :

you can see on top part the short axle shaft but from the other one you can see the difference even in appearance.The inner CV cup is bigger.
The jap made CV has green cup,and is considered to be  stronger.Till now I broke 2 outer CV s and one inner.

Also on the right you can see Im using Wurth Boots.They just cant be damaged. :) Incredible protection for the joints.
This is before the Anvil installation.

« Last Edit: October 01, 2004, 05:09:02 AM by GRVIT »

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GRVIT

Re: Flexy CV joints
« Reply #29 on: October 01, 2004, 06:16:08 AM »
the inner CV broke when my steering was slightly turned as you say.The 2 outer CV s broke when the wheel suddenly got instantly traction in muddy terrain while spining...
Jan 05 heh ?   well ... ,the sooner the better...
« Last Edit: October 01, 2004, 06:16:51 AM by GRVIT »