So I've been driving the car now for a few months with the new motor and trans and to be honest just jumping in and going for a drive has been nice but....the itch is still there so it's time to move onto the next project. The PO didn't paint the trunk lid and it hasn't had a seal on it since I've owned it. I just put some foam pieces in the corners to try and keep it from rattling. There is also nothing in the front of the trunk except the back of the back seat and it looks terrible. I put a plaid cover in there but it was cheap and it looks cheezy too. I am getting a lot of road noise and rattles from the trunk. I don't want to go too crazy but my plan is to paint the trunk lid flat black, put a new seal on, and install the board that goes behind the back seat. Debating on if I should rhino line the sheet metal of the trunk or spend the money and sound deaden it and find a good carpet kit. Curious what others have done that is practical and cuts down some exhaust noise.
Avidflyer
Well, make sure you get that trunk seal on soon! Without it, exhaust fumes can get sucked into your car and it smells pretty awful (isn't great for you either).
Depending on how much noise deadening you want, you have a lot of options. Start with the trunk underlayment, which came stock in these cars. It's $20 from CJPP (off the top of my head) and sits right on top of the gas tank, where it works to prevent noise from vibration, reduce heat, and deaden sound.
If PO replaced the quarters, did they recoat the insides with sound deadening material? I don't know exactly what was used in them from stock, but undercoating works pretty well as does bedliner apparently. Basically, you want to make sure that you have something on your quarters to add mass, which will reduce vibration and deaden sound. I have a couple coats of good thick 3M undercoating in Jane's quarters.
Not much in the trunk should rattle if everything is installed correctly. Make sure you get that divider back in and get the decklid squared away and see where you need to go from there. I thought that I was going to do a carpet kit in my trunk to deaden sound. But when it came down to it, I didn't like the quality of the carpet kits and the durability of any carpet kit is not going to be great when pitted against all of my camping gear, stove, cooler, tools, etc. So I went with the more cost-effective ($12), more durable (totally indestructible), but not-so-attractive thick ridged rubber mats that I cut to the exact size of the trunk.
Depending on how much noise deadening you want, you have a lot of options. Start with the trunk underlayment, which came stock in these cars. It's $20 from CJPP (off the top of my head) and sits right on top of the gas tank, where it works to prevent noise from vibration, reduce heat, and deaden sound.
If PO replaced the quarters, did they recoat the insides with sound deadening material? I don't know exactly what was used in them from stock, but undercoating works pretty well as does bedliner apparently. Basically, you want to make sure that you have something on your quarters to add mass, which will reduce vibration and deaden sound. I have a couple coats of good thick 3M undercoating in Jane's quarters.
Not much in the trunk should rattle if everything is installed correctly. Make sure you get that divider back in and get the decklid squared away and see where you need to go from there. I thought that I was going to do a carpet kit in my trunk to deaden sound. But when it came down to it, I didn't like the quality of the carpet kits and the durability of any carpet kit is not going to be great when pitted against all of my camping gear, stove, cooler, tools, etc. So I went with the more cost-effective ($12), more durable (totally indestructible), but not-so-attractive thick ridged rubber mats that I cut to the exact size of the trunk.
My 1990's cars have what appears to be a fire resistant/sound deadening mat and some plastic between the back seat and the trunk.maybe snag some from the biggest nicest Lincoln you can find at the salvage yard?
First, the inside of the quarters should be heavily coated with sound deadener, painted to match the car. The top of the gas tank should have a thick felt pad, with a top layer of asphalt-like material. The trunk lid seal should be installed. Hardtops also had sound deadener pads on the back of the quarter trim, package tray, and seat back, and of course all bodies had a thick pad under the rear seat. With all this stuff installed, these cars were actually very quiet inside, by the standards of the day. Usually, most or all of this stuff has been stripped out by some high school kid who wanted to hear his exhaust louder.
Thank you everyone this is exactly what I was curious about. The right rear quarter has been replaced and is basically bare metal. I think I will start with spraying all the sheet metal down with the rhino liner in a can stuff to make it all uniform and add some durability and then go from there with some sound deadening materials.
This may not be the direction you're wanting to go but just in case. I couldn't accept the top of gas tank also being the trunk floor so made an aluminum panel to cover it and used a couple types of sound deadening/inusating materials between the 2 layers. Also coated the trunk, interior sheet metal and then added heat/sound deadening layers. I put them wherever I could and even behind all the interior finish panels.
On the inside, I got rid of the flimsy fiber board rear peice behind the seat and made that out of aluminum as well and insulated underneath it. On my fastback, I got rid of the carpet and upholstered with leather instead and added a layer of thin upholstery foam to also prodise some sound deadening. Then I put in a white noise system - Just kiddin on that one:}0
A few pics:
On the inside, I got rid of the flimsy fiber board rear peice behind the seat and made that out of aluminum as well and insulated underneath it. On my fastback, I got rid of the carpet and upholstered with leather instead and added a layer of thin upholstery foam to also prodise some sound deadening. Then I put in a white noise system - Just kiddin on that one:}0
A few pics:
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