My trunk weatherstriping was replaced because it was damaged (torn etc) from years of use. My aunt/uncle who gave me the car lived in a town where there was no trash pick up so they had to bring garbage to the town dump. Over years of this use, the weatherstriping had been damaged for large objects being taken in and out.

91: Post what your trunk is doing here, Ive had to deal with leaky trunks before, and some ideas as to what type of leak this is may help find yours. I posted a new topic so that others who search the site for information, etc will find it easier to find.

Simple fix: Replace the whole damned thing. I replaced the window seals on my Cutlass last year, awesome company, reasonable prices, would buy from again.
Steele Rubber Products

yea ive replaced mine already as well, still leaking,but the thing i noticed is the trunk gap between the trunk lid and quarter panel are farther apart on the passenger side than the drive side, ive noticed that on a couple of GM vehicles ive worked on in the past

1) Rear window seal. At the bottom, between the rubber and the glass.
2) Antenna. Make sure the drain hose is intact.
3) Tail/side marker lights.



I'll bet on the antenna.

Norm

The C and H body cars are known to rot around the rear wheel wells, which will cause a leak. Remove all of the carpeting and look around the wheel wells inside the trunk. They typically start to rot around the top of the wheel well (there is a seam there) and then going down towards the back of the rear seats. I had this issue with 2 GM cars and both times repaired it with some fiberglass. When you do check for this look for 2 clues, mold on the back side of the carpeting along the wheel wells, and rust along the sides of the trunk interior. Both are classic signs of the wheel well rot.

thanks 85ciera for that, I never thought to check that area, ill also check the rear window seal at the bottom, when i lift my trunk the underside of the lid will be wet close to the center but to the right side the stripping is always dry on the inside and where it contacts the trunklid. but ph well when i have time ill check both of these areas, in the mean time i have to finish my LS-1 retrofit in a 70 tempest thanks,