[kpbrown31]

Searched old threads and didn't see much...has anyone had experience with the ACC mass backed carpet vs the non? Curious if it's worth the extra $$$. Searching elsewhere online I see people mentioning it molds down better?

[ID67goat]

For me, the mass backed feels like better quality, but in the end I didn’t notice much difference in sound reduction or any improvement in how it looks once it was installed in the car.

[jamesq]

I considered the mass-backed for my 63 wagon, but the guidance I got from our host was to stay with the molded carpets because I had a console.

The molded carpets fit very well!

James Q

[Entropy11]

My last 3 have been ACC mass-backed. I just like the way it lays better. I’m also lazy and don’t want the hassle of the dynamat even though I use it in other places. It does take a little extra work with consoles I’d agree with that.

[kpbrown31]

Originally Posted by Entropy11

My last 3 have been ACC mass-backed. I just like the way it lays better. I’m also lazy and don’t want the hassle of the dynamat even though I use it in other places. It does take a little extra work with consoles I’d agree with that.

Yeah I was actually planning to still lay a generic dynamat type liner down so that I’d have something adhered to the floor pans and possibly prevent some rattling noise. But maybe that’s overkill.

[Entropy11]

Originally Posted by kpbrown31

Yeah I was actually planning to still lay a generic dynamat type liner down so that I’d have something adhered to the floor pans and possibly prevent some rattling noise. But maybe that’s overkill.

You could probably get away with doing that in some places but in others maybe it would be too much? Going from the OE carpet to the backed seemed to make a sound difference to me in the past (haven’t hit the road yet in my current ‘68), but I’ve honestly never done a complete Dynamat floor to compare. I was going to do the flat foot well areas in this car with the generic Dynamat stuff I use but in hindsight it might have raised things enough to make the hump/console area fit slightly off.

Maybe I just decided against it because I knew my OCD would make it impossible to do just “some areas”. Haha