Sound Deadening. Worth it?

[vlad_d]

I bought some butyle sound deadening stuff recently(KillMat). I put it behind the door cards/trim on my Series 3 109. It seemed to turn a flimsy metallic “Cling!” sound when I close the door to a more modern “Chung!” sound. It made about a 5% increase in my feeling of “oh, this is a car, not a tractor.”

Well, I got a whole box left over if that stuff and I’m looking to put it where I can to reduce engine & drive noise. I already have big rubber floor mats, a load space rubber mat from our hosts, and older carpet kit that covers the transmission humo. But it still sounds like a bucket of bolts driving down the road, and motor and transmission whine from being in low gears too long.

I was thinking of putting more of that sound deadening stuff all over, but I don’t want to look at it. It sticks to panels and is a grid work of tin-foil with the KillMat logo repeated all over. Best for behind carpet and trim. But my Series is wonderfully bare.So I won’t be putting it on the roof or anywhere visible. My idea was to do the floorboards and seat box from underneath, and maybe the firewall or footwells from under. But I also don’t want to see it in the wheel wells or engine bay. Basically, I have an uncomfortable job ahead of me, and I’m asking myself if it’s worth it? What do you guys think? Have you had success with it? Was it worth it?

Mind you, I don’t have a radio in there and probably won’t be installing one. I just want the truck to feel a bit more insulated from noise and sounding more like a car and less like an echo-y tin tractor. But then again, that’s the appeal of the old Series, right? Share with me your thoughts on insulation and sound deadening.

I saw some Defenders in photos online that have padding inside like moving blankets or military helicopters have, which looks awesome, but I have no idea where to get some for a Series 3 LWB. Interior options I can find are basically carpet kits only for the floor. Anybody know where I can find headliner, or those military blankets I was talking about?

[jimrr]

putting deadening material on the ''outside'' (outside the cab) wouldn't last for my machine but I do believe the biggest benefit would be from the fwd. footwells stopping the engine bay/tire noise and the top of the rear fender wells.
The vertical sections of the rear fender wells can't be considered in my opinion but the top of them can.
That's my input as anywhere else would get torn up pdq and be REAL obvious. anything above the dash and the tub isn't worth it. (little soiund transmission from below) HOWEVER temperature insullation in the upper cab area would naturally absorb noise as well?

[siiirhd88]

I used a foil - butyl material on the bulkhead front, footwells, and inside the seatbox on the wife's 3.9 V8 SIIA. It helped greatly to reduce the heat from the exhaust manifolds. I used it inside the doors on my SIII. I expect using on the roof area would reduce the drumming sound. and I will likely use it on the pickup cab roof.