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1967 GTO Rear Window Leak.....How to fix?

6.2K views 17 replies 8 participants last post by  gtomike455  
#1 ·
I took out the trim on my '67 (see pics) and found some rust along the window and the back panel (including shelf is rusted); PO tried to put some kind of silicone to keep water out. What is the proper water flow channel from the back window? I plan to take the rear window out, clean up the rust, put in new trim clips but trying to figure out what caused the problem in the 1st place and to prevent further water from going into trunk. Thx!
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#2 ·
I don’t own a ‘67 , Ice , but I’ve read on here that’s a Very common design flaw issue on the ‘67 back window trim area , search and also thell be some answers on here for u Shortly no doubt Take care Ice
 
#5 ·
That's the plan, and neutralize rust with Ospho or something similar. Trunk sides and floor are still Ok except for underpanel where speakers mount. I'm just trying to visualize where the water was supposed to flow from back glass edge into window frame....then where??? Perhaps i should try to make a ridge with some kind of sealant over sides of lower trim......
 
#8 ·
Hi,

I believe NOS Only is correct, GM didn’t design the rear window, nor the front windshield for that matter, to drain water from the channels. I have seen old body guys drill a hole and braze in a copper tube into the rear channel on both sides, then drilling a hole and attaching/ brazing it to the rear wheel well housing so the water could drain onto the ground. Picture enclosed.
 
#9 ·
Good idea on creating your own channel, might try to do that with some simple tubing! Thanks for the ideas! Didn't look like there was a solution from original design......just an "ooops" we didn't think it would ever rain! or you would wash your car!
 
#12 ·
Based on all that what appears to be filler you're going to find this to be a larger than expected undertaking.
There are several vendors offering panels for this task. If you are a body man or at least a good fabricator making them would be easy.

Here is one offering for these.
 
#13 ·
Thanks great resource for future restoration! I'm not a body man (yet) but my brother is. I fixed the front windshield which had some rust; will give the rear a go as well and come up with something until I've got time to do a frame off restoration.
 
#14 ·
After looking at Roger1’s body restoration thread he’d whip this out with one hand tied behind his back ! Lol
Having your brother is great thou