Jeep Wrangler Forum

Jeep Wrangler Forum (http://www.wranglerforum.com/)
-   JK General Discussion Forum (http://www.wranglerforum.com/f274/)
-   -   Fixed the spongy rear center seat on my JK Unlimited (http://www.wranglerforum.com/f274/fixed-the-spongy-rear-center-seat-on-my-jk-unlimited-147061.html)

2012 03-18-2012 01:39 AM

Fixed the spongy rear center seat on my JK Unlimited
 
5 Attachment(s)
For some reason the rear center seats on JKU's have no support. When you sit on this seat it feels like the seat is going to give out and you'll be sitting on the floor board (even for a light-weight like me). This is still a problem on the 2012's. I finally looked at it more and came up with a solution using some metal L brackets. My goal was to support the seat without it being noticeable to passengers that any mod had been done and that the seat could still fold down as usual. Mission accomplished...:thumb:
Attachment 105794
bracket assemblies, 2 brackets per assembly for an adjustable fit
Attachment 105795
fit check
Attachment 105796
painting to match existing gloss black underseat metal
Attachment 105797
installed...it works
Attachment 105798
problem solved!:thumb:

jcf 03-18-2012 01:47 AM

Thats a great fix for a PITB problem :thumb:

jeepkingtn 03-18-2012 06:16 AM

Where did you get the brackets? Thanks.

strider_mt2k 03-18-2012 06:18 AM

Simple fix and elegant implementation.

Kudos!

m0wens 03-18-2012 07:52 AM

Those look like server rack rails for about a 6ou server. Is that what you used? If so, I'll be doing the same mod here shortly since I have plenty of rack rails...:D

kbwwolf 03-18-2012 07:52 AM

Quote:

Originally Posted by jeepkingtn (Post 2152339)
Where did you get the brackets? Thanks.

^^^ This!

Where'd you get em, how long are they, etc?

Man, I've been looking for a good way to do this (without using say, a crate, or a cinderblock) since I bought my Jeep.

2012 03-18-2012 11:43 AM

I put together two electronic rack drawer slide brackets. The brackets are 8" long and the span they need to clear under the seat is 9". Putting two of them together allowed me to clear the 9" span and also make them adjustable for a tight fit. I just happen to have these extra pieces from working with electronic racks at work. I had been planning on using 6" or so steel corner braces and cutting & drilling them to fit together similar to what I did with the brackets. The trick is making sure they are thick enough or have bent flanges running their length to prevent them from bowing under a person's weight. Here are some ideas:
http://accuride.com/Resources/PDF/ra...ries_pdf_2.pdf


Stanley Hardware :* 304242 *-* 6" Mechanically Galvanized(ST2H) Corner Brace

A trip to the hardware store will probably generate some more ideas.

schirmyver 03-18-2012 12:23 PM

Here is a previous thread about this and a few other suggestions...

http://www.wranglerforum.com/f33/doe...is-124293.html

:thumb:

MarineHawk 03-18-2012 12:40 PM

Kind of low-tech, but for now, I just densely packed the space underneath with rolled-up synthetic blankets. It seems to work.

kbwwolf 03-18-2012 04:11 PM

Quote:

Originally Posted by 2012 (Post 2152903)
I put together two electronic rack drawer slide brackets. The brackets are 8" long and the span they need to clear under the seat is 9". Putting two of them together allowed me to clear the 9" span and also make them adjustable for a tight fit. I just happen to have these extra pieces from working with electronic racks at work. I had been planning on using 6" or so steel corner braces and cutting & drilling them to fit together similar to what I did with the brackets. The trick is making sure they are thick enough or have bent flanges running their length to prevent them from bowing under a person's weight. Here are some ideas:
http://accuride.com/Resources/PDF/ra...ries_pdf_2.pdf


Stanley Hardware :* 304242 *-* 6" Mechanically Galvanized(ST2H) Corner Brace

A trip to the hardware store will probably generate some more ideas.

Excellent. Thanks man. :thumb:

2012 03-19-2012 01:07 AM

Quote:

Originally Posted by schirmyver (Post 2152993)
Here is a previous thread about this and a few other suggestions...

http://www.wranglerforum.com/f33/doe...is-124293.html

:thumb:

Thanks for the link; there are several good ideas there too.

I searched for this seat problem on the this site and didn't find any postings; guess I should have searched better. :facepalm:

ReubenLemley 03-19-2012 02:45 AM

Those look like server rack rails for about a 6ou server.
http://www.australialuxe.info/013-1.jpg

2012 03-19-2012 03:06 PM

Quote:

Originally Posted by ReubenLemley (Post 2155385)
Those look like server rack rails for about a 6ou server.
http://www.australialuxe.info/013-1.jpg

Sort of. They are rear mounting brackets from a rack mounted slide kit. I think they were from a rack mount keyboard. They've been in my office for years. Now they'll be in my Jeep for years!

pkmcd99 03-19-2012 05:44 PM

Im 235 pounds and can bounce in the rear seat all day without spongy feel. Ive read this stuff before, has jeep forgot springs on some rear seats? Lol

baytownbert 03-21-2012 10:44 AM

I just went and photographed my back seat in my 2011 JKU Sport. it is braced from the factory and I weigh 225 and it is solid feeling all the way across.

http://i86.photobucket.com/albums/k8...eatbracing.jpg

2012Cosmos 03-21-2012 10:59 AM

Under rear middle seat, no pressure.

http://i295.photobucket.com/albums/m...365/photo2.jpg

Under rear middle seat, clenched fist pushing down, I'm 6'6" 220lb I was pushing hard.

http://i295.photobucket.com/albums/m...365/photo1.jpg

(Look how far the serial numbers moved!)

:banghead:

pkmcd99 03-21-2012 11:02 AM

By the looks of our weights, it apears were all healthy sized jeepers...lol

2012Cosmos 03-21-2012 11:14 AM

:wavey:

Blastek 03-21-2012 11:19 AM

I'm looking to buy an unlimited and all of the '12s at the auto show had the saggy seat. So I emailed Jeep and got the usual BS. Now that I see an '11 with seat support I will ask again and watch them dance around the issue. Here's what they said about the lack of support in the center seat:

Dear Customer:

It is great to read of your interest in the 2012 Jeep Wrangler and
Wrangler Unlimited!

In 2011, Jeep introduced an all-new interior to Wrangler that combines
rich styling, versatility, comfort and improved feature use. The rear
seats is designed to split 60/40, and easily folds flat, creating 86.75
cu. ft. of total storage volume. I am sorry that our factory
specifications and available options do not completely satisfy your
needs.

Chrysler Group LLC places great care and effort into the design and
engineering of our vehicles, exceeding current market demands for
safety, value, utility, performance, and style. Each model vehicle
comes in a variety of trim levels that strive to accommodate even the
most discriminating tastes of our customers.

We cannot modify a vehicle at the factory beyond the listed options and
features provided. In order to keep the cost low while maintaining a
high standard of available features, you cannot special order options
that are not available from the factory. The reason for this is that
these vehicles are produced along an assembly line.

If you have any further product questions about the 2012 Jeep Wrangler
and Wrangler Unlimited, you are always welcome to reply back to this
email and I will respond back to you as promptly as I can. If you
prefer, you can also call me directly with your questions at the Jeep
Product Information Center by calling 1-800-964-0600.

Thank you for your interest in Jeep. We hope this information will
not discourage you from your possible purchase.

Sincerely,

*****
Jeep Product Information Center

baytownbert 03-21-2012 11:24 AM

I went back out an photographed my 2011 JKU Rear seat underside and yes, there is no bracing in the middle, but I couldn't feel anything spongy. Note, the unbraced section is a mere 8 inches and my butt is 18 inches. At least that is a conservative measurement.

http://i86.photobucket.com/albums/k8...atbracing2.jpg

2012 03-21-2012 05:13 PM

2 Attachment(s)
I just found the brackets I used online. They are from General Devices. They are rack slide mounting brackets. The General Devices part number is CM4. I used 4 of them (2 pairs). I'm not sure if they sell to the public directly. Tel: 317-897-7000, E-mail sales@generaldevices.com Here's the link:
Item # CM4 on General Devices Co., Inc.
Attachment 106946

2012 03-21-2012 05:50 PM

Quote:

Originally Posted by baytownbert (Post 2164650)
I went back out an photographed my 2011 JKU Rear seat underside and yes, there is no bracing in the middle, but I couldn't feel anything spongy. Note, the unbraced section is a mere 8 inches and my butt is 18 inches. At least that is a conservative measurement.

Try kneeling on one knee on the center seat area as if you were reaching over the seat for something in the trunk area. You should get that sinking feeling like something is very wrong. :popcorn: (Disclaimer: not responsible for any seat damage.:whistling:)

Yes, on the top side of the seat you can feel support everywhere except for the middle 10". So if your passenger is a skinny adult (like me) or a child the seat will sag. The passenger feels like they are sinking and the seat will be deformed after a while. It is a really poor design that Jeep could easily fix if they want to.:nonono:

kbwwolf 03-21-2012 06:51 PM

Quote:

Originally Posted by 2012 (Post 2165859)
I just found the brackets I used online. They are from General Devices. They are rack slide mounting brackets. The General Devices part number is CM4. I used 4 of them (2 pairs). I'm not sure if they sell to the public directly. Tel: 317-897-7000, E-mail sales@generaldevices.com Here's the link:
Item # CM4 on General Devices Co., Inc.

Awesome. Thanks for the link, man. I scoured the Lowe's yesterday. Best I could find were some drawer guides, held 100 lbs each. But would've had to drill em and do some other mods to make em as compatible as the GD brackets. :thumb:

TheDragon 03-21-2012 08:48 PM

Quote:

Originally Posted by Blastek (Post 2164629)
I'm looking to buy an unlimited and all of the '12s at the auto show had the saggy seat. So I emailed Jeep and got the usual BS. Now that I see an '11 with seat support I will ask again and watch them dance around the issue. Here's what they said about the lack of support in the center seat:

Dear Customer:

It is great to read of your interest in the 2012 Jeep Wrangler and
Wrangler Unlimited!

In 2011, Jeep introduced an all-new interior to Wrangler that combines
rich styling, versatility, comfort and improved feature use. The rear
seats is designed to split 60/40, and easily folds flat, creating 86.75
cu. ft. of total storage volume. I am sorry that our factory
specifications and available options do not completely satisfy your
needs.

Chrysler Group LLC places great care and effort into the design and
engineering of our vehicles, exceeding current market demands for
safety, value, utility, performance, and style. Each model vehicle
comes in a variety of trim levels that strive to accommodate even the
most discriminating tastes of our customers.

We cannot modify a vehicle at the factory beyond the listed options and
features provided. In order to keep the cost low while maintaining a
high standard of available features, you cannot special order options
that are not available from the factory. The reason for this is that
these vehicles are produced along an assembly line.

If you have any further product questions about the 2012 Jeep Wrangler
and Wrangler Unlimited, you are always welcome to reply back to this
email and I will respond back to you as promptly as I can. If you
prefer, you can also call me directly with your questions at the Jeep
Product Information Center by calling 1-800-964-0600.

Thank you for your interest in Jeep. We hope this information will
not discourage you from your possible purchase.

Sincerely,

*****
Jeep Product Information Center

HOLY SH$! Keep costs low???? ooohhhh....keep COSTS low, NOT the price. How about since the price is HIGH we keep the quality HIGH...just a thought.

COwrangler4dr 06-20-2012 11:35 PM

Thanks, it gave me an idea of what I need to fix it. Called Jeep 1-877-426-5337, they have never heard of the problem. What a joke !

WXman 06-21-2012 09:16 AM

When I took delivery of my '11 last Summer, this issue was the first thing I noticed. My 10 year old said it was like "sitting in a hammock". Just ridiculous...I specifically got the Unlimited to have 5 seating positions...only to find out that the 5th is uncomfortable and dangerous (more chance of sliding out of the seatbelt with no butt support).

I called Chrysler and reported my dissatisfaction immediately and they said they'd "pass it along to the design engineering team". Hopefully, the '13 seat redesign includes a fix for this ridiculous issue.

For the rest of us, thanks for this thread. It's renewed my desire to fab something up.

ShotgunRed218 06-21-2012 10:35 AM

Yes great ideas guys. We were disappointed also about the bad design and were really hoping they would have fixed it on the '12s. I think the "cost cutting" is a line of BS, lets talk in circles to confuse you answer. Typical. I am very curious if they fix it for the '13s.

Lusus_Naturae 11-17-2012 12:22 AM

Quote:

Originally Posted by ShotgunRed218 (Post 2498328)
Yes great ideas guys. We were disappointed also about the bad design and were really hoping they would have fixed it on the '12s. I think the "cost cutting" is a line of BS, lets talk in circles to confuse you answer. Typical. I am very curious if they fix it for the '13s.

They didn't, I'm looking through the fixes others have come up with for my new 2013 JKU.

Blastek 11-17-2012 02:42 AM

wrapping bungie cords around the metal supports has held up great over 6 months. Feels like a proper seat.

SilverSport 11-17-2012 03:02 PM

Quote:

Originally Posted by Blastek (Post 3004984)
wrapping bungie cords around the metal supports has held up great over 6 months. Feels like a proper seat.

No pics? LOL


All times are GMT -5. The time now is 09:58 AM.