Grenaded Differential - Upgrading to 8.6" LWB - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum



Welcome Enthusiast! If you already own a Chevy TrailBlazer or GMC Envoy or perhaps thinking of purchasing such a vehicle, then you have come to the best TrailBlazer and Envoy site on the net! Rainier, Bravada, Ascender, and 9-7x owners welcome too!

You are currently viewing our site as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to search and post topics, communicate privately with other members, respond to polls, upload content, and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact contact us.
Join Today!
Go Back   Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum > 2002 - 2009 TrailBlazer/Envoy Tech > 02-09 General Tech Q&A > Off-Road

Off-Road For suspension, wheel, and tire questions DIRECTLY related to Off-Roading.

TrailVoy.com is the premier GMC Envoy Forum on the internet. Registered Users do not see the above ads.
Reply
 
Thread Tools
  #1  
Old 05-07-2009, 05:11 PM
the roadie's Avatar
the roadie the roadie is offline
No longer with us
 
2004 GMC Envoy SLT "Roadiemobile"
Extreme Offroad Pewter 4.2L I6 4X4
Join Date: Apr 2005
Posts: 26,181
Grenaded Differential - Upgrading to 8.6" LWB

As you may have read, I broke the differential helping out a van stuck in Colorado snow. 4LO, good traction on the rear, marginal on the front, 1/2-2/3 throttle. It went click, and just quit. Limped down off the mountain 20-25 miles at 8-12 MPH, all the way making horrible noises from the rear and intermittently locking up, breaking loose, and I was always worried it would lock up permanently.

Here's the start of the axle replacement thread.

Replacement on jack stands, ready to open up. Oh, it weighs 230 pounds, and I *did* kill my back this time. Ick.



Oh, very nice. Unknown mileage, but it's a 2003, and the oil looks very good. Almost no particles on the drain plug. Oh, this has a drain plug - my 2004 did not.



Remember what this G80 carrier looks like.



Oh, I have a leaky BDS gas shock, too. Time to upgrade the shocks as well.



Cover damage without the Purple Cranium Spider





Inside the cover



Fragments that fell out at first.



Note bearing way out of position due to missing G80 housing and no spider gears



Fragments in the bottom



After clearing out fragments, saw the passenger side c-clip was missing. Driver's side was as well! All that held the shafts (and wheels) from walking out of the axle was the brake calipers.



Overall view of the mess.



Fragments collected. Wonder if JB Weld can put them back together?



Why I should have worn surgical gloves. Sigh.....





Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 05-07-2009, 05:17 PM
flyingfischer5's Avatar
flyingfischer5 flyingfischer5 is offline
TrailVoy Alumni
 
2004 Chevy TrailBlazer LS
Black 4.2L I6 4X4
Join Date: Nov 2007
Location: Spokane, WA
Posts: 1,574
WOW
__________________
-Craig-
Northwest Chapter Vice President
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Custom Tuned by ScarabEpic22
Reply With Quote Quick reply to this message
  #3  
Old 05-07-2009, 05:30 PM
ShadowClutch's Avatar
ShadowClutch ShadowClutch is offline
TrailVoy Alumni
 
2002 Chevy TrailBlazer LS
Scarred Pewter Metallic 4.2L I6 2WD
Join Date: Mar 2007
Location: Gainesville, FL
Posts: 1,667
Damn! Roadie. Are you going to change the oil in the new one anyway since you've got it in an open easy to get to position now?
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Quick reply to this message
 
  #4  
Old 05-07-2009, 05:59 PM
JamesDowning's Avatar
JamesDowning JamesDowning is offline
TrailVoy Alumni
 
2005 Chevy TrailBlazer LT
Offroad Edition 4.2L I6 4X4
Join Date: Nov 2007
Location: MD
Posts: 2,636
Do'h... I saw the pinion still in there. I guess I was wrong about the pinion shearing off... blast.

Any clue what the root failure was? Any evidence?

__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

... IF
you think you're ready...
Reply With Quote Quick reply to this message
  #5  
Old 05-07-2009, 06:12 PM
liquidtherapy's Avatar
liquidtherapy liquidtherapy is offline
No longer with us
 
2004 GMC Envoy SLE
Indigo Blue Metallic 4.2L I6 2WD
Join Date: Jan 2006
Location: Fairfield, OH
Posts: 3,097
JB Weld should fix that right up. Maybe some gorilla tape too and you'll be fine
Reply With Quote Quick reply to this message
  #6  
Old 05-07-2009, 06:17 PM
06 Envoy's Avatar
06 Envoy 06 Envoy is offline
TrailVoy Alumni
 
2012 Lincoln Navigator L Ultimate
Pearl White Other 4X4
Join Date: Jan 2008
Location: Toronto Eh
Posts: 1,373
Duct tape will fix that
__________________
Navigator Eh!! I've gone to the blue oval dark side
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Quick reply to this message
  #7  
Old 05-07-2009, 06:21 PM
ylab's Avatar
ylab ylab is offline
TrailVoy Alumni
 
2002 GMC Envoy SLT
Summit White 4.2L I6 4X4
Join Date: Jul 2005
Location: Stratford, NJ
Posts: 3,203
Its amazing, the ring gear actually looks to be fine in the pictures.....not that I would trust them, after having all that debri in it. Sure looks like your Grenade-80 lived up to its knick name though. The locker appears to have exploded in the pictures.
__________________
Borla Exhaust, CAI, e-fans, Wester's Tune, MarkMc's lift & Z71 Shocks!
Reply With Quote Quick reply to this message
  #8  
Old 05-07-2009, 06:27 PM
Fishhunter911's Avatar
Fishhunter911 Fishhunter911 is offline
New Member
 
2007 GMC Yukon SLT
Onyx Black 5.3L V8 4X4
Join Date: Sep 2004
Location: Delaware
Posts: 11,894
DAYUM Bill!!! I am glad you found a replacement axle... good luck getting it all back together.

__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote
Reply With Quote Quick reply to this message
  #9  
Old 05-07-2009, 06:54 PM
lynch55's Avatar
lynch55 lynch55 is offline
TrailVoy Alumni
 
2005 Chevy TrailBlazer LS
Black 4.2L I6 4X4
Join Date: Dec 2008
Location: Nashville, Tn.
Posts: 1,733
You are one lucky fella!
Reply With Quote Quick reply to this message
  #10  
Old 05-07-2009, 07:06 PM
culzero's Avatar
culzero culzero is offline
TrailVoy Alumni
 
2002 GMC Envoy SLE
Summit White 4.2L I6 2WD
Join Date: Aug 2005
Location: Katy, TX
Posts: 1,531
amazing carnage

glad you found a replacement though
__________________
South Chapter Vice President
150.7db @ 36Hz in the kick on a TL
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum forums, you must first register.

Please enter your desired user name, your email address and other required details in the form below.
(Only letters, numbers, dashes and underscores are permitted for user names)
The user name that you choose is permanent and can never be changed.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Location
Where you live (ex: Philadephia, PA)
Vehicle Year
Choose your year
Or enter your choice here:
Vehicle Color
Choose your factory color (Custom, Not Listed & Two-Tones; Use Text Field Below)
Or enter your choice here:
Vehicle Make
Choose your make
Or enter your choice here:
Vehicle Model
Choose your model
Or enter your choice here:
Vehicle Engine
Choose your engine
Vehicle Drivetrain
Choose your vehicle drivetrain
Security Question
Fill in the blanks: Tra___oy
Insurance
Please select your insurance company (Optional)

Log-in



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


» Sponsors

Advertising Info

All times are GMT -4. The time now is 10:55 AM.


Chevy TrailBlazer and GMC Envoy Enthusiasts - Copyright 2004 - 2009 All Rights Reserved.
All trademarks referenced herein are property of their respective owners.
RSS Feed