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Drivetrain - 2001 - 2010 Discuss front and rear axle, transfer case, brakes, etc. Transmission questions belong in the appropriate transmission forum below. First through fourth generation...

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Old 07-09-2019, 08:25 PM   #1 (permalink)
Jimpa
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CV Axles

I need to replace both my CV axles. Left side has broken twice. Once from a tear in the boot and filled with water on the lower end. Once at the top for no apparent reason. The right side boot broke at the clamp and now slinging out all the grease.

Should I stick with the OEM or has anyone gone to the heavy duty CV axles and what do you think about them?

Thanks in advance.

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Old 07-10-2019, 12:22 AM   #2 (permalink)
D.Camilleri
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Are you breaking the axle shafts or just having the boots tear? A high quality replacement shaft should be adequate.

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Old 07-10-2019, 10:18 AM   #3 (permalink)
Rvn4me
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Normally GM axles are usually good. 20875738 Front Axle $377.68 each
https://dmaxstore.com/products/?rout...roduct_id=2276
Its good to have your cv angles as flat as possible
RCV are $2500 a set

Last edited by Rvn4me; 07-10-2019 at 10:32 AM.
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Old 07-10-2019, 08:29 PM   #4 (permalink)
Jimpa
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The divers side upper just broke on its own at the knuckle without notice. the passenger side boot broke below the clamp.

It has a 2" torsion bar lift so should I get some 2" longer?
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2008 LMM 2500HD
172k miles
ECM mod to the Duramilager
K&N dry intake
Modified hood for cooler temps
Bumper mounted LED light bar
6 tube 120psi train horn
Fusion controller for monitoring and DPF delete with
straight pipe and baffled muffler
Resonator bypass
PCV bypass
2" torsion key lift and 5th wheel rails.

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Old 07-11-2019, 09:41 AM   #5 (permalink)
Rvn4me
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Quote:
Originally Posted by Jimpa View Post
It has a 2" torsion bar lift so should I get some 2" longer?
No need for 2” lift
Some 6”/8” lift kits come with CV spacers.
Google “duramax CV spacers” lots to read
There are 1000hp sled pullers like dirtyhooker that I watch and he runs stock OEM axles.
I think you need to look whats your cause.

Last edited by Rvn4me; 07-11-2019 at 10:11 AM.
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Old 07-11-2019, 02:08 PM   #6 (permalink)
tnDan
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Quote:
Originally Posted by Jimpa View Post
The divers side upper just broke on its own at the knuckle without notice. the passenger side boot broke below the clamp.

It has a 2" torsion bar lift so should I get some 2" longer?
Really good chance this is why the axle broke. At some point with the key lift you exceeded the operational range of the CV joint and caused it to bind up. These factory joints are not high angle units like that used in the Jeep Liberty for example, those are referred to as a DO(double offset).
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Old 07-11-2019, 03:44 PM   #7 (permalink)
Jimpa
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So I should find some at least 22 inches long to replace the factory 20 11/16?
__________________
2008 LMM 2500HD
172k miles
ECM mod to the Duramilager
K&N dry intake
Modified hood for cooler temps
Bumper mounted LED light bar
6 tube 120psi train horn
Fusion controller for monitoring and DPF delete with
straight pipe and baffled muffler
Resonator bypass
PCV bypass
2" torsion key lift and 5th wheel rails.

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Old 07-11-2019, 08:55 PM   #8 (permalink)
Jimpa
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I'll go back with stock and maybe a spacer
__________________
2008 LMM 2500HD
172k miles
ECM mod to the Duramilager
K&N dry intake
Modified hood for cooler temps
Bumper mounted LED light bar
6 tube 120psi train horn
Fusion controller for monitoring and DPF delete with
straight pipe and baffled muffler
Resonator bypass
PCV bypass
2" torsion key lift and 5th wheel rails.

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Old 07-12-2019, 04:05 PM   #9 (permalink)
Jimpa
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Join Date: Jun 2019
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Ordered from the dmax store. Thanks for the info
__________________
2008 LMM 2500HD
172k miles
ECM mod to the Duramilager
K&N dry intake
Modified hood for cooler temps
Bumper mounted LED light bar
6 tube 120psi train horn
Fusion controller for monitoring and DPF delete with
straight pipe and baffled muffler
Resonator bypass
PCV bypass
2" torsion key lift and 5th wheel rails.

Offline   Reply With Quote Quick reply to this message
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