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11-14-2007, 02:23 PM
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#1 |
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Sofa King. We, Todd, Ed.
Join Date: Oct 2006
Location: Spokane, Wa.
Posts: 631
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Broken front drive shaft CV
Whats the best solution for this. Its the second time I have broken the center part of the "CV" on my front driveline. Im talking about the assembly at the transfer case for the front driveline. The U-joints still look OK. Can the "CV" be eliminated? Is it even called a "CV"? Im sure someone makes something better. Thanks.
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11-14-2007, 04:52 PM
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#2 |
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Registered User
Join Date: Dec 1999
Location: Old Mission, MI, USA
Posts: 2,507
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Re: Broken front drive shaft CV
It is really called Double Cardan Joint. They are not typically a problem. How have you broken it? Do you have a lift? Is the slip joint in the front shaft in good condition?
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Tim |
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11-14-2007, 07:49 PM
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#3 |
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just can't cover up my redneck
Join Date: May 2004
Location: Columbus OH
Posts: 11,414
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Re: Broken front drive shaft CV
Typically these are broken because of binding, either from too much lift or droop when 'wheeling.
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11-15-2007, 06:02 AM
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#4 |
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Registered User
Join Date: Oct 2003
Location: Central Vermont
Posts: 8,537
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Re: Broken front drive shaft CV
Never broke one but upgraded to a 1 ton front shaft last year when I needed another front drive line due to the existing one didn't have a long enough slip in it...guess how I found out.
 Surprised to hear your breaking the front shaft that way though, must be all that Spokane sand or something. |
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11-15-2007, 10:06 AM
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#5 |
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Registered User
Join Date: Feb 2000
Location: Modesto, CA
Posts: 1,842
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Re: Broken front drive shaft CV
I too have never broke that part of my driveline. But I did upgrade my drivelines, got them from HighAngle Driveline here in Cali. I would take a measurement from pinion yoke to T-case yoke and have one made and get the beefest one you can afford with the CV
 
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1972 K5 MPFI454/Sm465/Np205/D60/14FFd/Re-Centerd H1s w/Swamper Iroks
Last edited by Burt4x4; 11-15-2007 at 10:09 AM. |
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11-15-2007, 10:57 AM
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#6 |
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Special Order
  
Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,851
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Re: Broken front drive shaft CV
Never seen one break.It`s strange that a u-joint took what that yoke couldn`t.Let`s see the damage.
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"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ |
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11-15-2007, 12:37 PM
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#7 |
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Sofa King. We, Todd, Ed.
Join Date: Oct 2006
Location: Spokane, Wa.
Posts: 631
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Re: Broken front drive shaft CV
Yeah its weird. I hope its just "one of those things". I'm going to rebuild it with regular parts for now. I'll tear it down tonight and post some carnage pix tommorrow.
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11-16-2007, 12:19 AM
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#8 |
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Special Order
Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,851
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Re: Broken front drive shaft CV
They strarted using the dbl cadon joint when they "married" the trans and t-case which shortened the front driveshaft.The purpose is they handle a steeper angle.Guys are adding a second one on the other end of the front shaft and on rear shafts when lifting alot,on shorter rigs,and when going with doublers(rear shaft).
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"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ |
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11-16-2007, 05:35 AM
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#9 | |
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Registered User
Join Date: Oct 2003
Location: Central Vermont
Posts: 8,537
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Re: Broken front drive shaft CV
Quote:
Rear shaft joint pictured. |
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11-16-2007, 01:09 PM
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#10 |
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Sofa King. We, Todd, Ed.
Join Date: Oct 2006
Location: Spokane, Wa.
Posts: 631
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Re: Broken front drive shaft CV
The weld-on yoke (to the driveshaft) failed and took the centering yoke with it. On the picture of the new parts the arrow points to the "cup & pin" on the weld-on yoke that connects to the "ball" on the centering yoke. This is where something went wrong. Hopefully it was just old and fatigued. Both u-joints are perfect and the outside case yoke doesn't have any binding/impact marks.
Last edited by johnnywagon; 11-16-2007 at 01:09 PM. Reason: typo |
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11-16-2007, 04:56 PM
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#11 |
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Registered User
Join Date: Dec 1999
Location: Old Mission, MI, USA
Posts: 2,507
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Re: Broken front drive shaft CV
I would guess that someone put new u-joints in and did not replace the rest of the worn out parts. That probably led to your failure.
__________________
Tim |
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11-16-2007, 06:16 PM
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#12 | |
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Sofa King. We, Todd, Ed.
Join Date: Oct 2006
Location: Spokane, Wa.
Posts: 631
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Re: Broken front drive shaft CV
Quote:
 
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11-22-2007, 06:05 PM
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#13 |
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Sofa King. We, Todd, Ed.
Join Date: Oct 2006
Location: Spokane, Wa.
Posts: 631
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Re: Broken front drive shaft CV
The driveline's all better now....my wallet is NOT.
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11-22-2007, 07:27 PM
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#14 | |
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Registered User
Join Date: Oct 2003
Location: Central Vermont
Posts: 8,537
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Re: Broken front drive shaft CV
Quote:
 Naw really, you'll never regret spending the money. |
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