2002 Trailblazer tierod question. Need help badly. - Team Camaro Tech
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post #1 of 8 (permalink) Old Mar 10th, 12, 01:17 PM Thread Starter
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Gary
 
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2002 Trailblazer tierod question. Need help badly.

My son has an 2002 4WD Trailblazer that needs the tierods changed. I have searched the net to find out what he needs but it seems this subject is very vague.

He went to the local Auto zone and found that there are 2 sizes for these tierods, 14mm and 16mm, and what I can tell from my research there was a design change somewhere and we cannot figure out what he needs to get. Anyone have any experience with this? The dealer wants to take it all apart before they can tell you what is needed. You would think they would be able to tell you based on the VIN but I haven't found any info.

Can anyone help me out?

Thanks


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post #2 of 8 (permalink) Old Mar 10th, 12, 02:58 PM
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Re: 2002 Trailblazer tierod question. Need help badly.

are you trying to find out if it's 14 or 16mm?

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post #3 of 8 (permalink) Old Mar 11th, 12, 03:37 PM Thread Starter
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Re: 2002 Trailblazer tierod question. Need help badly.

Quote:
Originally Posted by 1SLOW64 View Post
are you trying to find out if it's 14 or 16mm?
Yes, I am. Hopefully we can find out before we have to take it apart. This is his only transportation, so we don't have a whole lot of time to mess around with it. Plus from what my son tells me there is a big chunk of change difference between the 14mm and the 16mm tierods, so he wants to be sure he plans ahead with his budget.


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post #4 of 8 (permalink) Old Mar 12th, 12, 08:14 AM
Tom
 
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Re: 2002 Trailblazer tierod question. Need help badly.

14mm or 16mm refers to the thread size. You should be able to slip the open end of the appropriate size wrench over the threads to determine which one you need.
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post #5 of 8 (permalink) Old Mar 12th, 12, 09:30 AM
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Thumbs up Re: 2002 Trailblazer tierod question. Need help badly.

^^^ What he said

Only early production 2002 4X4 models and some SWB 2WD's used the 14mm tie rods.
Use a 15mm wrench - if it 'slips over' then you have the 14mm threads - if it doesn't you have the more common 16mm.

Also check the inners - if the outer on one side is failing it is often from being bounced off curbs or lots of pot-hole road/off roading use.
It's easy to replace the inners while in there
You will also need new rack end boot clamps - or maybe even new 'boot-kits' (boot and clamps) if they are torn or damaged - when doing inners.

NAPA should have the parts in stock and their Tie Rod (Outers) have 'Zerks' to allow lubing in the future!

Measure from the jamb-nut to the center of the steering arm stud to get a 'base' number to re-set the toe-in, then you can pre-set and drive for final alignment ...

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post #6 of 8 (permalink) Old Mar 12th, 12, 09:36 AM
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Wink Re: 2002 Trailblazer tierod question. Need help badly.

Did a quick "YouTube" check and found some good links - here are bad 'Inners'

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post #7 of 8 (permalink) Old Mar 12th, 12, 10:12 AM Thread Starter
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Re: 2002 Trailblazer tierod question. Need help badly.

Thanks gentlemen for the help. We will give the 15mm wrench trick a go and see what we find.


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post #8 of 8 (permalink) Old Mar 12th, 12, 11:11 AM
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Re: 2002 Trailblazer tierod question. Need help badly.

FYI, there's a good forum for trailblazers with alot of helpful people and info. Similar to this site. www.trailvoy.com

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