Vent weatherstrip comparison

[Precision Parts]

Originally Posted by Skunksmash

Don't mean to sound too negative, but you'll be in for some hassle trying to get those things to fit. In my opinion they technically don't fit. It really sucks that whoever made them originally doesn't anymore. Not that I could find anyway. They'll go on there, and I'm sure they're very durable and will last 20 years just like the old ones. But that doesn't mean they fit well.

You'll have 1/8th inch gaps all over the place once you're finished, and the noise level is of course unacceptable. I ended up having to use that black RTV silicone pretty much everywhere, and I still have yet to iron out all the air noise and whistling. Not even the old cracked and half rotted originals made that much noise. And the new ones are a lot thicker. I'd say at least twice as thick, maybe more. That makes them even harder to work with.

I think Precision needs to go back to the drawing board, and try to make them more like GM did. They might be able to turn it around if they made a very detailed instruction manual that they included with all the seals, that no only addresses how to install them but how to make them seal up perfectly, addressing each and every point that air is going to leak in. But I think that would mean that you're just going to be siliconing them in, everywhere they are supposed to be up against the metal. Or maybe make some very detailed videos on installing both the 1 piece and the two piece designs, showing exactly how to get rid of ALL the gaps and all the air noise. Just thought I'd warn people what you're in for.

We have been selling these for about 12 years with no modifications. They were reverse engineered from originals as we try to produce everything from factory originals, it's really the only way to go.

If you have to use a sealant to fill gaps, you have serious issues going on! Usually it's a 1 piece design being installed in a 2 piece style assembly, or vice versa. This has been a real issue with these trucks and the reason we made a comparison video.

Derek