What side if the Trunk divider does the insulation attach? The trunk side or the backseat side?

 

Trunk side.

 

I have seen both personally if you want the ultimate do both with super adhesive.

 

Welcome to the site.

What car, model, year is this for?

I have only seen it installed on the cabin side of 70-72 models. There are special metal tabs on the cabin divider the material hangs from. If you're installing something like FATMAT you can do whatever you want.

 

The vehicle is a 1970 Ols Cutlass w-31

 

The factory hung the cabin insulation on these 3 hooks.

 

Maybe I misunderstood the question.


I hung my insulation on these hooks first, then I hung the backing/divider piece (the cardboard piece) over this.

 

Not used on that model at all....don't install it.

 

The w31 was tripped down quite a bit. If you want to add some sound insulation the best place to put it is on the cabin side.