I love my hardtop but damn it’s noisy

[Yeller]

It is interesting that everything that I've read that is official about Dynamat & similar products is almost universally ignored. They say that whole panel coverage is not necessary, yet I can't recall ever seeing anyone not do full panel coverage. Including me.

I did partial, just a few pieces left over from a project in a kit on the underside of the hood on the J Truck, only covering about 1/4 of the hood, made a huge difference in the noise coming from in, it had a serious "drum" going on and that all but went away.

 

[DirtDonk]

Even the manufacturer doesn’t say that you need full coverage. To me, that says a lot.
And even our Racket Jacket kit comes with strips to put only in certain key areas. Although, it also comes with a full sound and thermal blanket setup to enhance the overall performance.
But I think most installers are more comfortable with covering the entire surface area, probably getting rid of the excess ambient noise from outside, rather than just removing the drumming reflections from body panels.

And, I believe anyway, that full coverage probably helps in the heat barrier department as well.

 

[ntsqd]

I can see many reasons for going full coverage, just that the mfg's don't suggest it. If nothing else, going full coverage on a floor means no odd lumps or ridges under the carpet.

 

[Steve83]

That interior is amazing. Great job!

Thanks. Most of it is totally custom panels that I designed & upholstered to fit like later Broncos' interiors. This shows the door, cargo, & camper window trim panels:

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This is the carpet:

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...on a floor means no odd lumps or ridges under the carpet.

That's why I put 3 layers in the cargo floor valleys, plus a layer directly on the floor (which was already fully covered with color-matched metal-flake Rhino).

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I didn't fully cover the roof, but I was already into the 3rd box, and I had nothing else to use it on, so I tried to apply as much as I could.

(click this text)

 

[jba6555]

Thanks. Most of it is totally custom panels that I designed & upholstered to fit like later Broncos' interiors. This shows the door, cargo, & camper window trim panels:

(click this text)


This is the carpet:

(click this text)


That's why I put 3 layers in the cargo floor valleys, plus a layer directly on the floor (which was already fully covered with color-matched metal-flake Rhino).

(click this text)


I didn't fully cover the roof, but I was already into the 3rd box, and I had nothing else to use it on, so I tried to apply as much as I could.

(click this text)

What are you using for a rear seat in that one?

 

[danny]

My problem is I take my top
Off too often. I live at the beach in North Carolina where it’s sunny and warm all summer but gets freezing temps in the winter . You guys are right about fixing one rattle at the time until they are all gone . I was really wondering about comparing the Cj hardtops . Over the years I have filtered in a few jeeps with my Broncos. Of coarse the Bronco has prevailed ! The Jeep fiberglass tops just go on and off easy with no noise problems. I was thinking most of the racket is coming from the steel /heavy liftgate. Has anyone tried a lighter fiberglass liftgate ?

 

[BOBS 2 68S]

Last time I took my top off someone yelled " Boy put your shirt back on!"

 

[Steve83]

What are you using for a rear seat in that one?

Originally a Colt Vista Wagon; but when he was really using the truck, he built a platform to hold dog training supplies.

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