as far as i know a lot of the cars mentioned didnt come with the deflector . but .when
i worked at a body shop a little over a year ago i did see the above mentioned part
in the cowl of a 2009 grand prix GXP having a new windshield installed.

 

hi 109 that part fits all gm W bodys. it will fit on your 02. my monte is a 2000 .

 

Correct, this is actually a Grand Prix part. That's why you have to do a little trimming to make it fit correctly

 

Just wanted to say THANKS Chibi for passing along this info.
I did the cabin filter in my '03 Jeff Gordon Monte last week and the deflector yesterday.
The dealer ordered it in, list $7.85(CAN), my cost $5.49 + tax. Cheap insurance. Fits great.
Thanx for the part number(#15794785), the parts guy had no idea. He wanted to open the box and look at it when it came in.

IMG_00000794_zps7501ce05.jpg

IMG_00000797_zps0305c12a.jpg

Slight mod to the existing cowl cover.
IMG_00000798_zps73ebe859.jpg

Done!
IMG_00000799_zps1089fd21.jpg

thanx again....................graham

 

Glad it worked out for ya!

 

Just put mine in and it only took 20 minutes... Great how to... Only snag was my large round retainer broke and I'll have to go to the dealer for a new one... Thanks again Mike...

 

awesome and very helpful write up. thankfully i got this part today before we get smacked with more rain tomorrow.. and cutting those tabs off gave me an excuse to try out my new dremel! also idk if anyone else did it but i cut a 4inch section off the removed weatherstripping and tacked it on the end the deflector towards the center of the windshield for extra drip protection. just in case.

 

Just bought a 05 LT in January with 65k. I was vacuuming and noticed the carpet was wet. I pulled it back and it was soaked. I have Alldata on my computer and it was no help. I googled the leak and it brought me here. It was right on, 4.62 inc tax and a five minute job. I pulled the seats and the carpet to dry properly so it doesn't mildew and stink. Props to poster

 

Have installed in my 02 also,really easy to do,thanks for the write up and the partnumber!

 

Glad this is still helping people