Whats shaking Bob , you still alive and well friend??

The seals should fit with their adhesive side attached around the taillight lenses. They should be pliable enough so that you can pressure fit your lenses in place and lightly torque them down. No longer will you experience that dreaded taillight drip.

Take care and welcome to the forum.

Bob
Palm City, FL

Red, attach the gasket to the "tail light hole in the bumper.

M-D Tear Drop Profile Ultra Weatherseal, Silicone Rubber, Black

The product is made by "M-D Building Products" and is called "Tear Drop Profile Ultra Weatherseal: Silicone Rubber Door Gasket - 1/4" Thick by 1/2" Wide and 20’ Long." I found this stuff at Lowe's. It has a self-adhisive backing that keeps it stuck to the tail lights.

Manufacturer: M-D Building Products
Lowes Item number: 73604
Model: 68668
Description: Tear Drop Profile Ultra Weatherseal, Silicone Rubber Door Gasket
Dimensions: 1/4" Thick 1/2" Wide x 20' Long
Color: Black
Package: Yellow Box

Sorry for the late response.
Bob Rego

Hope you don't mind but I have a dumb question. You used the Lowes rubber door gasket for tail light seals. Did the gasket attach to the lens or the tail light 'hole' in the bumper. Thanks!