84 Caddy seats, what holds them up? - Hot Rod Forum : Hotrodders Bulletin Board
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Old 05-15-2008, 03:40 PM
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84 Caddy seats, what holds them up?

I am attempting to put in 84 Caddy seat in the back of my 39. I get the idea about making a sheet metal surround thing for the seat riser....what I don't get is, whats under the butt part. If I support the parimeter of my seat, the foam stuff has nothing under it, and my butt will just push it through.

If I put a board under the seat, the board is flat and the seat bottom has all kinds of curves and what not...looks like it was molded to some strange body parts or such. Ive tried to find something on the web that shows the stock set up, but can't find a thing.

Anybody out there who has used these wire form seats? Wires, foam, leather, that's it, no frame! And foam bottom irregular, not flat!

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R

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Old 05-15-2008, 04:05 PM
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Just a guess on my part but just maybe that seat was made to fit the floor pan of the Caddy..
If you really want to use it you may have to cut the piece out of the floor of a Cad and make your seat support using that..If you have any luck the cad donor car is still available to you..

Sam
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Old 05-15-2008, 07:29 PM
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Late model rear seats do sit on the floor pans. For another application, use a sander or electric knife and cut the bottom of the foam flat. It should be thick enough that it will still have some substance for the occasional use it will likely see. Or, after cutting it flat, glue a couple inches of flat stock foam to the bottom.
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Old 05-15-2008, 08:22 PM
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Quote:
Originally Posted by stitcher_guy
Late model rear seats do sit on the floor pans. For another application, use a sander or electric knife and cut the bottom of the foam flat. It should be thick enough that it will still have some substance for the occasional use it will likely see. Or, after cutting it flat, glue a couple inches of flat stock foam to the bottom.
Wow! DUH! Cut the bottom flat! Geeze! That is a GREAT idea! All I need is some foam now and some glue and I'm in business. Cool! I have a ton of wood around here to use for a base....then just weld in some clips on the floor and bolt the wood down a?

The seat is mostly for looks anyway. The fronts move back far enough to touch the back seat, so zero leg room back there if the front seat is all the way back. And the way the car sounds, FLOWMASTER 40's, nobody much wants a ride anyhow. ;-)

R
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Old 05-15-2008, 09:05 PM
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Unless you have the proper tools for the job, like a Bosch 1575 foam saw with 12" reciprocating blades, cutting the foam flat will be a tough job, and if you make a mistake it may not be easy to repair. It might be easier for you to build the seats up by gluing smaller pieces of foam to the seat until it is flat. You will need very firm foam. I might use 6 or 7 pound re-bonded foam (like carpet padding, only thicker) to do this job, although 80 or 90 density foam may work too.
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Old 05-16-2008, 06:38 AM
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If I remeber right the mid 80's caddy rear seat's have a wire inner structure to them,and if so cutting the foam flat is gonna be a little bit harder to do..
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Old 05-16-2008, 08:41 PM
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At the very least, it seems to me that there has to be something embedded in the bottom of the seat foam to hog ring the seat cover to. It also seems reasonable that there is something else embedded in the foam to stiffen the seat. Just some more things that need to be considered before you try to flatten the seat bottom.
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Old 05-16-2008, 08:51 PM
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Quote:
Originally Posted by DanTwoLakes
At the very least, it seems to me that there has to be something embedded in the bottom of the seat foam to hog ring the seat cover to. It also seems reasonable that there is something else embedded in the foam to stiffen the seat. Just some more things that need to be considered before you try to flatten the seat bottom.
Yup, theres wires embedded in the seat foam...well not embedded like "inside", but there is a wire form to which the seat cover hog rings attach. The thing is, theres just not enough wires to keep the foam from being pushed through when you sit on the seat.

I think this idea of gluing some foam to the bottom of the seat so that the seat bottom becomes flat...then build a platform with surround on the floor, set the seat on it....is good idea!
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Old 05-16-2008, 09:27 PM
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I have been thinking about this situation all day. A framework, whether wood or steel, that lets the outside perimeter of the seat sit flat seems to be the solution. The next problem is how to support the part of the seat that gets sat on from sinking down to the floor of the car. You need to devise a sling that attaches to the frame's perimeter that will hold the foam up without collapsing when sat upon. Attaching either rigid polypropylene webbing, or heavy duty elastic webbing to the frame for the seat to sit on seems to be the answer.
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Old 05-17-2008, 10:03 AM
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Quote:
Originally Posted by DanTwoLakes
I have been thinking about this situation all day. A framework, whether wood or steel, that lets the outside perimeter of the seat sit flat seems to be the solution. The next problem is how to support the part of the seat that gets sat on from sinking down to the floor of the car. You need to devise a sling that attaches to the frame's perimeter that will hold the foam up without collapsing when sat upon. Attaching either rigid polypropylene webbing, or heavy duty elastic webbing to the frame for the seat to sit on seems to be the answer.

I agree with you on that Dan,what about the Burlap webbing for chair's?Or would that be too weak?
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Old 05-17-2008, 12:30 PM
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Sure, Ludlow jute webbing would work. I'm not crazy about jute webbing because it will eventually weaken significantly over time. Both of them are 3 1/2" wide, but polypropylene is thinner and more pliable, and polypropylene webbing would be full strength forever.
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Old 05-17-2008, 05:37 PM
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Quote:
Originally Posted by DanTwoLakes
Sure, Ludlow jute webbing would work. I'm not crazy about jute webbing because it will eventually weaken significantly over time. Both of them are 3 1/2" wide, but polypropylene is thinner and more pliable, and polypropylene webbing would be full strength forever.

True,I foregot about that.
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