What is the best way to quiet up the interior of my 2001 psd?
do i gut the interior down to sheet metal, then spray something on all the metal to deadin the sound or are there other ways to make the inside as quiet as possible ??

 

Most good car audio stores should have some type of sound proofing material they use when installing speakers.

 

A product called Dynamat is the best for sound insulation jobs. They have it in either a spray form , or in adhesive sheets that can be applied to body panels/floors/etc.....once it gets warmer out , i am going to rip my door panels off and dynamat the hell out of them , besides sound , this stuff also works to hold heat in as well.

 

Joe Boost is right Dynamatt is the best you can get it at any automotive paint store its easy to work with too, Just make sure you clean the heck out of the inside of you doors and under your carpet first with some thinner or something like that then cut to fit and your done we double walled our truck even the roof its nice and added about 65 pounds to the truck

 

Mee too! Go with the Dynamat. I believe it is flexible enough to form easily to the contours of the bodt panels, and the sound deadening properties are very high. Try looking at something else. It worked for me. When at idle on my PSD I kept hearing a pronounced noise or rattle just from typical engine noise. It seemed to be transmitted through the steering column. I tried everything from lead soldering wire wrapped around the steering shaft to foam refrigerant line insulation to reduce the resonance. Then I got inside and listened down by the pedals where the column comes through the firewall and moved the rubber around...actually I just pushed it toward the firewall and the sound went away! Soooooo, i took out a little spray lithium just because it is dense....and gave it a little spray, well it lubed up the rubber seal and the noise was gone! It is much quieter inside now........just a suggestion