Mystery of the GM OEM Rear Air Deflector - 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 > 2006 - 2009 TrailBlazer SS Tech > 06-09 SS Appearance > Exterior

Exterior Exterior repairs/modifications

TrailVoy.com is the premier GMC Envoy Forum on the internet. Registered Users do not see the above ads.
Reply
 
Thread Tools
  #1  
Old 01-12-2009, 05:20 PM
SportinLS2's Avatar
SportinLS2 SportinLS2 is offline
Junior Member
 
2006 Chevy TrailBlazer SS
Black 6.0L LS2 V8 AWD
Join Date: Dec 2007
Location: INDIANA
Posts: 36
Mystery of the GM OEM Rear Air Deflector

Guys, I spent a great deal of effort resolving some of this mystery, so I thought I'd share the information I have after finding and installing one.

The GM Rear Air Deflector shown on the "accessories" web page DOES exist (Part #12497618), but is no longer recognized by their Parts Department.


This item has been discontinued and the replacement part number (17800651) is the flat blade of transparent smoked plastic with a dent along the one edge to REVEAL the third brake light in the OEM location.


See this thread for more info :https://forums.trailvoy.com/showthrea...flector&page=5

There are some good installed pictures of both (Page 2 - new) (Page 5 - old)

Once I found the old part number (12497618), I called several dealers until I found one still setting on the shelf. They were glad to sell it (free shipping)

ANYWAY here are some details on how this thing installs:

First it is molded to closely match the third brake light applicade and comes with a plug to RELOCATE the third brake light reflector.


The instructions are very easy to follow and walk you through the REMOVAL of the OEM reflector and RELOCATION on the deflector arms and plugging the orignal reflector hole.


COMPLETED PHOTOS

HATCH CLOSED


HATCH OPEN


The integration of the OEM reflector INTO the rear air deflector really disguises this aftermarket modification and would easily pass any vehicle inspection.

As far an "functional", it does an incrediable job of reducing the amount of "road spray". Even at city speeds (<30mph) virtually no mist accumulates on the rear window. This greatly contributes to a cleaner rear end. No dust, so no need for washer fluid that eliminates mud trails down the gate.

For what it's worth I am very pleased with this mod but be prepared to do a lot of footwork yourself. My dealership wouldn't even help locate the part. They can't order it anymore and that was that...

BTW: Sorry for the pictures. It is winter here and my truck in embarrasing dirty all the time.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 01-12-2009, 06:51 PM
ieatglue's Avatar
ieatglue ieatglue is offline
TrailVoy Guru
 
2003 Chevy TrailBlazer LT EXT
Onyx Black 4.2L I6 4X4
Join Date: Aug 2005
Location: Toronto, Ontario
Posts: 8,770
That looks badass! I wonder if it would help cut down the dirt build up on the back
__________________
Horsepower is how fast you hit a wall, Torque is how far you take the wall with you

[SIZE="2"][COLOR="Red"]THESE BIG RED LETTERS HELP ME FIND MY POST[/COLOR][/SIZE]
Reply With Quote Quick reply to this message
  #3  
Old 01-12-2009, 06:58 PM
lilzip24 lilzip24 is offline
 
Join Date: Jan 2008
Posts: 64
how much did this part cost you?
Reply With Quote Quick reply to this message
 
  #4  
Old 01-12-2009, 08:09 PM
SportinLS2's Avatar
SportinLS2 SportinLS2 is offline
Junior Member
 
2006 Chevy TrailBlazer SS
Black 6.0L LS2 V8 AWD
Join Date: Dec 2007
Location: INDIANA
Posts: 36
Found it at a dealer in IL shipped to IN for $109.

I have had it on for 1 1/2 years without any problem. The third brake light housing that is more exposed than OEM placement has not shown any signs of moisture.

and YES it virtually eliminates the dust that accumulates on the lift gate.

Glad you like it!
Reply With Quote Quick reply to this message
  #5  
Old 01-12-2009, 10:40 PM
stick64's Avatar
stick64 stick64 is offline
Junior Member
 
2006 GMC Envoy Denali
Liquid Silver Metallic 5.3L V8 2WD
Join Date: Jan 2009
Location: Houston
Posts: 5
More Options for Rear Air Deflectors

If you want to deviate a bit from GM, Lund Int. has a few good options for this aftermarket mod. More aggressive probably for some. I hope to find one soon for an 06 Denali.
Reply With Quote Quick reply to this message
  #6  
Old 01-18-2009, 03:15 PM
SportinLS2's Avatar
SportinLS2 SportinLS2 is offline
Junior Member
 
2006 Chevy TrailBlazer SS
Black 6.0L LS2 V8 AWD
Join Date: Dec 2007
Location: INDIANA
Posts: 36
Example of How "well" it works...

I ran through the car wash today then ran around town.

This is the result of 30 mins city driving followed by 15 minutes highway on snow/salt/wet roads.


(click pic for larger image)

Doesn't protect the lift gate, BUT it does keep the glass clean enough that I rear wiper is not needed.

PS There is a slight wind noise @120 that becomes a pretty good whistle above 130, BUT it didn't fly off!
Reply With Quote Quick reply to this message
  #7  
Old 01-19-2009, 12:02 PM
stick64's Avatar
stick64 stick64 is offline
Junior Member
 
2006 GMC Envoy Denali
Liquid Silver Metallic 5.3L V8 2WD
Join Date: Jan 2009
Location: Houston
Posts: 5
Yea the GM deflector looks the best. I am looking for one, just gottat decide if I want to keep it black or go silver. Thanks for the pix !
Reply With Quote Quick reply to this message
  #8  
Old 01-19-2009, 06:37 PM
SportinLS2's Avatar
SportinLS2 SportinLS2 is offline
Junior Member
 
2006 Chevy TrailBlazer SS
Black 6.0L LS2 V8 AWD
Join Date: Dec 2007
Location: INDIANA
Posts: 36
I'd vote Silver...I like how the lines blend into the truck and a color shift will give it some pop, unless that's the effect you are looking for?

You can barely see, but prototype SS's rear wing was body color and even Silver



Hope you can find one! It's a big country. Seems like there would be at least one somewhere if you are patient enough to find it?

Good Luck.
Reply With Quote Quick reply to this message
  #9  
Old 01-19-2009, 07:07 PM
stick64's Avatar
stick64 stick64 is offline
Junior Member
 
2006 GMC Envoy Denali
Liquid Silver Metallic 5.3L V8 2WD
Join Date: Jan 2009
Location: Houston
Posts: 5
I assume that the deflectors on the SS pix will fit a 06 Envoy Denali ? Thanks for your input.
Reply With Quote Quick reply to this message
  #10  
Old 01-19-2009, 07:11 PM
stick64's Avatar
stick64 stick64 is offline
Junior Member
 
2006 GMC Envoy Denali
Liquid Silver Metallic 5.3L V8 2WD
Join Date: Jan 2009
Location: Houston
Posts: 5
Hey Sportin, can't ya just rotate that silver SS 90 degrees for me ? Jus kid n !
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:

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 10:56 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