My new Trailblazer!
10 posts
• Page 1 of 1
I just got my new 2003 Trailblazer LS home! 2500$ with 219km on it. The front diffeential needs to be fixed, but it shouldn't cost much. I cannot wait to lift it and make it awesome.
- nicedude80
- Cruiser
- Posts: 23
- Joined: Fri Feb 05, 2016 4:26 pm
- Name: Jared
- Vehicle Year: 2003
- Vehicle: Chevrolet TrailBlazer
- DriveTrain: 4WD
Welcome!
What's wrong with the front diff? You can pick up a used one for about $200 and swap it out.
Look in the glove box and find the rears ratio
GU6- 3.42
GT4- 3.73
GT5- 4.10
G80- locking rear diff
What's wrong with the front diff? You can pick up a used one for about $200 and swap it out.
Look in the glove box and find the rears ratio
GU6- 3.42
GT4- 3.73
GT5- 4.10
G80- locking rear diff
- Aries
- Trail-Blazer
- Posts: 278
- Joined: Sat Oct 05, 2013 2:38 am
- Location: Delaware
- Name: David
- Vehicle Year: 2002
- Vehicle: Chevrolet TrailBlazer
- DriveTrain: 4WD
We're not sure yet, I think it is the front disconnect, where the CV axle connects to the front diff. Me and my dad are going to get it in the garage and do some tests on it.
I have the G80 transmission differential.
I have the G80 transmission differential.
Last edited by DirtyBacon04 on Mon Feb 22, 2016 4:57 am, edited 3 times in total.
Reason: correction on nomenclature
Reason: correction on nomenclature
- nicedude80
- Cruiser
- Posts: 23
- Joined: Fri Feb 05, 2016 4:26 pm
- Name: Jared
- Vehicle Year: 2003
- Vehicle: Chevrolet TrailBlazer
- DriveTrain: 4WD
Congrats on your new purchase.
"Please consider a search before posting. Folks on this site PIONEERED functional offroad use of these trucks."
The answer to many common lift questions can be found here
My Build Thread
The answer to many common lift questions can be found here
My Build Thread
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navigator - Moderator
- Posts: 4651
- Joined: Wed Mar 09, 2011 10:16 am
- Location: NC, Winnabow
- Name: Chris
- Vehicle Year: 2006
- Vehicle: Chevrolet TrailBlazer
- DriveTrain: 4WD
- Rank: Trail Ready
Congrats and welcome!
2005 Trailblazer EXT LT V8 Lifted
Build Thread
There are 10 types of people in this world, those who understand binary and those who don't.
Build Thread
There are 10 types of people in this world, those who understand binary and those who don't.
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HawkeyeC25 - Trail-Blazer
- Posts: 340
- Joined: Mon Nov 09, 2015 10:24 pm
- Location: MI, Howell
- Name: Craig
- Vehicle Year: 2005
- Vehicle: Chevrolet Trailblazer EXT
- DriveTrain: 4WD w/ Aftermarket Locker
- Rank: Offroad Rated
Welcome! Looks like she's already having fun in that snow!
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Sent from Tapatalk
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mason10198 - Moderator
- Posts: 504
- Joined: Thu Sep 17, 2015 11:49 pm
- Location: AR, Bryant
- Name: Mason
- Vehicle Year: 2005
- Vehicle: Chevrolet TrailBlazer
- DriveTrain: 4WD w/ Aftermarket Locker
- Rank: Offroad Rated
Congrats on joining the cool kids club. I think you've got a good deal of reading to do ahead. We've put together a pretty comprehensive troubleshooting flow chart for the 4wd system. Easy enough to find. The differential and disconnect are two separate items and on opposite sides of the oil pan. The disconnect (aka disco) is on the passenger side and is a common failure. A lot more common than the front diff failing. (a lot cheaper and easier to fix, too.)
Wish you the best of luck. If you can't find the answers you need after doing your due diligence in searching, feel free to ask!
Wish you the best of luck. If you can't find the answers you need after doing your due diligence in searching, feel free to ask!
Current Count of Transmission Rebuilds: 5.5
***The more you know, the less you need.***
USMC '07-'12
Dirty Bacon's Build
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DirtyBacon04 - Moderator
- Posts: 3046
- Joined: Fri Aug 05, 2011 4:59 am
- Location: FL, Central
- Name: Michael
- Vehicle Year: 2004
- Vehicle: Chevrolet TrailBlazer
- DriveTrain: 4WD w/ Aftermarket Locker
- Rank: Expedition Rated
Thanks for the welcome guys. I have the gt4 and g80 like I said. We have troubleshooted the issue, and we believe it is the front disconnect. We are going to designate a weekend to rip the passenger side wheel off and make sure it is the front disconnect, or if it is the actuator. Luckily however, I have a brother in law that has a slightly older chevy he is parting out, so I may be able to use parts from it. He also knows a guy who has a trailblazer which fried the engine, but the rest works, so I should be able to get parts. I am so excited to get this thing on trails. After the 4wd is good, I will be doing a 3" lift from MarkMc and new Z71 springs in the rear, new shock absorbers and struts, and some 32" general grabber tires. Now I just need money. ;(
- nicedude80
- Cruiser
- Posts: 23
- Joined: Fri Feb 05, 2016 4:26 pm
- Name: Jared
- Vehicle Year: 2003
- Vehicle: Chevrolet TrailBlazer
- DriveTrain: 4WD
Welcome. Not sure what you could really source from an older chevy, but interested to see what ideas you come up with.
they've always worked for me.
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HARDTRAILZ - Moderator
- Posts: 6342
- Joined: Sat Sep 12, 2009 1:49 am
- Location: IN, Batesville
- Name: Kyle
- Vehicle Year: 2006
- Vehicle: Chevrolet TrailBlazer
- DriveTrain: 4WD w/ Aftermarket Locker
- Rank: Extreme Offroader
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Jrgunn5150 - Veteran
- Posts: 1128
- Joined: Fri Jan 09, 2015 1:49 pm
- Location: Ionia, Michigan
- Name: Jr.
- Vehicle Year: 2006
- Vehicle: Chevrolet TrailBlazer
- DriveTrain: 4WD w/ G80
- Rank: Trail Ready
10 posts
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