The Garage - Plymouth Soundproofing

The Garage: Plymouth Sound Deadening Projects

The Garage: Plymouth Sound Deadening Projects

Featured Build: Plymouth Duster Sound Deadening

Duster Joe's 1976 Plymouth Duster Trunk Build

This 1976 Plymouth Duster has a 2006 6.1L Hemi and a 1996 Borg Warner T56 transmission. Oh, and it also has 3 boxes of Damplifier Pro sound deadening (about 90 sq ft) to ensure that beast of an engine doesn't shake him out of the car. The trunk is big (about 53 cubic feet), so it took 10 sheets of Damplifier Pro to completely cover the floor, wheel wells, and side panels.

Follow Joe on Instagram to keep up with his journey building this beauty! DusterJoe

1976 Plymouth Duster sound deadening project in the trunk

1976 Plymouth Duster by DusterJoe

Plymouth Duster trunk cleaned out

Step 1: Empty the trunk. Step 2: Look at it. Step 3: Come up with awesome idea.

Plymouth Duster trunk sound deadening

Oh right! The trunk needs some sound deadening. It only took 1 sheet of Damplifier Pro on the trunk walls to reduce sound when knocked to a deep thump.

Plymouth Duster trunk car audio

After covering the entire floor and wheel wells in addition to that one sheet we put on each inner corner panel, this trunk is super dead. You can't even hear the fuel pump anymore.

Plymouth Duster trunk with cardboard template

Mapping out a plan using cardboard and kitty litter. The cardboard was used as a template for the false wall and inner quarter walls. The cat litter is for a cat. Or maybe it's to represent a battery. We forget.

Plymouth Duster trunk with fabricated cardboard

Replace the card board templates with MDF panels. Check. Replace kitty litter with battery. Double check.

Plymouth Duster trunk with uncovered battery

After finish up wiring the stereo, the sub box is ready to be mounted into its final resting place. The battery will eventually be covered, but still a lot to do. Although we we do have one upholstered panel back there!

Plymouth Duster trunk subwoofer

This trunk is starting to come together! The battery is now covered and we've got upholstery on the back wall. Wrinkles... prepare to meet steam.

Plymouth Duster trunk with hardwood floor

And we're done! Matching floor installed. Don't you dare put any luggage in there.

More Plymouth Sound Deadening Projects

1970 Plymouth Barracuda undercoating with deadener

1970 Plymouth Barracuda

Type of Project: Undercoating Sound Deadening

Products Used: 55 sq ft of Spectrum Liquid Deadener

1970 Plymouth Duster with sound deadening and full soundproofing

1970 Plymouth Duster 340

Type of Project: Full Auto Soundproofing

Products Used: 67 Sq Ft of Damplifier Pro Deadener (Floors/Doors/Trunk)

44 Sq Ft of Luxury Liner Pro Sound Barrier Material Floors/Trunk)

18 Sq Ft of OverKill Pro Closed Cell Foam (Doors)

Accessories: Spray Adhesive (2 cans), Wooden Hand Roller