R/H FRNT Half Shaft Removal !!!! - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum



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Go Back   Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum > 2002 - 2009 TrailBlazer/Envoy Tech > 02-09 Vortec 4.2L I-6 Engine and Drivetrain > 4x4 Drivetrain

4x4 Drivetrain 4x4 Repairs & Problems

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  #1  
Old 02-02-2009, 03:20 PM
colovoy02 colovoy02 is offline
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2002 GMC Envoy SLT
Pewter Metallic 4.2L I6 4X4
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R/H FRNT Half Shaft Removal !!!!

I have an 02 envoy and I discovered this weekend a grinding noise comming from the front. I jacked up the front of the car and rotated each wheel. I noticed that the r/h front wheel when rotated had a grinding/crunching noise! I can feel/hear the upper cv joint making the noise. So, here is my question, how do you release the "clip" to pull out half shaft? I know that you need to use a punch and 3lb hammer but, at what location are you hitting? Does anybody have a pic? I have not yet started on this project so, Im hoping that it will be clear what part to hit!
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  #2  
Old 02-02-2009, 03:25 PM
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the roadie the roadie is offline
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My pics aren't available from when I did it yet, but you're hitting the "tripot" area of the inner CV joint near the oil pan. It's got a slight rounding so you can get a drift punch or 1/2" pipe onto it, and whale away with a hammer from a foot or two away. One of mine was easier than the other side, since it's not just a c-clip holding them in, but possibly frozen/corroded splines.

You also need to take the steering knuckle out of the upper control arm and remove the 35mm axle nut and a few other things, but I assume you have that all under control?
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  #3  
Old 02-02-2009, 03:29 PM
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markarock markarock is offline
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The CV axles look the same on both sides.

There are two pics of a driver's side axle in this thread.

http://forums.trailvoy.com/showthread.php?t=43405

The part you want to hit with the hammer/drift is the rusty cylinder adjacent to the differential (inboard of the rubber boot). It is called a tripot if I recall correctly.
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  #4  
Old 02-02-2009, 03:47 PM
colovoy02 colovoy02 is offline
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2002 GMC Envoy SLT
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35mm deep well, long drift punch, and a BFH. Yeah, I have all of the other info for the job. Im going to do the fix on a lift, hope the voy makes it about 12 miles!!
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Old 02-02-2009, 06:09 PM
mba_uiu mba_uiu is offline
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2003 Chevy TrailBlazer LT EXT
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I pulled mine on Saturday. I used a 12" long 1/2" drive extension (craftsman so if you miss it up it's free to replace) and hit it right on the heavy metal CV housing. Three swings with a 3lb hammer had it out. I had a little trouble getting the knuckle to bend far enough to get it out so be ready to man handle the thing. When you have it back in and are ready to put the shock assembly in place you might find that the sway bar gets in the way of the lower extension. We undid the pin bolt that holds the lower part of the shock and turned it to snake it on the stud mount.
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Old 02-02-2009, 06:11 PM
mba_uiu mba_uiu is offline
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2003 Chevy TrailBlazer LT EXT
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BTW O'Reily has the socket for 9.99 but you can get a loaner from them for free!
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