by greasemonkey » Tue Jan 15, 2008 5:24 pm
definitely don't get dynamat, that stuffs marked up almost as much as Bank$ Power!!
if you check ebay there are several brands on there that are about half price. I don't remember what brand it is but one of them is a legitimate generic brand that comes from the same manufacturer dynamat is supplied by.
just spend some time on there, figure out the price/square foot they're selling for and watch the shipping costs to make sure they're not jacked way up(some are, some aren't). look for the 8-mil thickness, metal/foil backed stuff. the metal backed stuff is more durable than the straight foam and is what you want for using under the carpet. that'll be both a sound and a thermal barrier, which is nice for extreme temperatures (you know, like when it gets REALLY COLD at +30 degrees F!...hahaha).
probably the most important part to cover, maybe even with two layers, is the back of the cab below the window, ton of road noise there. 2nd most important(and most difficult) is the firewall. the back of the plastic door panels and also on the inside of the outer door skin will make a pretty big difference, too. and obviously under the floor carpet. if you have the headliner down (I'll have to, mine's falling down) then a layer up there will make a big difference when you park in the sun.
I'm absolutely sure that I don't want to take the dash apart just to put deadener in there; but if I ever do have to pull the dash out I'll be putting all kinds of sticky mat and foam blocks in there!
'93 250 4x4 NV4500, flatbed, club cab, ex brake, pump tweaked, too many new ideas thanks to you guys.
dubbed the "Mexican Mtn Goat"
..if you find yourself in a fair fight you did not properly prepare..
..hot rodders are the original recyclers!..