What type of seam sealer do I need to use under the paint where the quarters meet the rear window filler panel, and where the quarters meet the rocker panels? And also the drip rails? I want something that is permenant, will never crack the paint.

I bought some of the 3M stuff from Year One, but I think it's only for the spot weld seams on the firewall etc.

[This message has been edited by ETD66SS (edited 06-06-2000).]

We use 3M fast N firm, and 3M Ultra pro in our shop.
The Ultra pro is a little better than the Fast n Firm.
The fast N firm tends to crack after a while.

You can use them anywhere on the car.

Jeff Litka
72 Chevelle SS
72 MonteCarlo

[This message has been edited by JSL (edited 06-07-2000).]