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-   -   Mud Behind the Tail Lights JK (http://www.wranglerforum.com/f274/mud-behind-the-tail-lights-jk-111289.html)

MrSig 09-05-2011 06:07 PM

Mud Behind the Tail Lights JK
 
I did this Mod on 10.15.07
A hole in the bottom of the jeep will shoot mud (where the piece of foam is)up and behind both of the rear tail lights.

First remove the tail lights The 2 screws only on the right side of the left light and the left side of the right light. Then clean out the cavity well! Remove the foam block from both holes.
http://www.aaof.us/images/lrout.jpg
Left side out.
http://www.aaof.us/images/rrout.jpg
Right side out.
Next you see the hole on each side.
http://www.aaof.us/images/lrhole.jpg
Left side hole.
http://www.aaof.us/images/rrhole.jpg
Right rear hole.
Then place a piece of rubber over the holes.
http://www.aaof.us/images/rub1.jpg
Next fill with Marine low expansion foam.
http://www.aaof.us/images/lrfull.jpg
Left side full up to the tag wires and don't get any on the gas breather.
http://www.aaof.us/images/rrfull.jpg
Right side about half way up.

Let cure, reconnect wires to lights and screw back in..
Done!
http://www.aaof.us/images/lrdone.jpg
Left rear done!
http://www.aaof.us/images/rrdone.jpg
Right rear done!
Now no more mud or stuff will go up into the holes and rot out behind your tail lights..
I got the marine low expansion foam from a boat repair house. It is made to breath and will not let water stay in but keep dirt out!
Follow Up!
On the 23rd at 7am I removed the right tail light and put in 28oz of water on top of the foam then put the tail light back in.
Just a little bit ago (3pm/1500hrs) I removed the right tail light and checked the cavity and not a drop of moister was found! So this was a great fix it keeps the dirt, & mud out but still lets it breath!
As of today still works great!

MrSig 09-10-2011 05:50 PM

UP dated for 2011 & up
On the passenger side it is all sealed up no more foam pad. Under shot.
http://www.aaof.us/images/b11.jpg
Inside shot.
http://www.aaof.us/images/b11a.jpg

Drill a 5/8" hole from the bottom up. I had to remove the tire to get in to the spot to drill.
http://www.aaof.us/images/b11b.jpg

Feed hose in and up with no cap on.
http://www.aaof.us/images/b11c.jpg

Loop the hose in side well and put cap on and secure up with wire tie.
Add foam.
http://www.aaof.us/images/b11d.jpg
Finish running hose to rear diff. Don't forget to check for clearance with axle and spring, wire ties in and your done.

strider_mt2k 05-12-2012 06:07 AM

I noticed dried mud in that section when I was installing stuff too.

That is an interesting idea.

DirtyTeddy 06-04-2013 09:59 AM

Old thread and maybe the OP won't chime in but would I be able to use something like http://www.homedepot.com/catalog/pro...45dd79_300.jpg

Not sure what the difference between this and marine foam is, they both seem to be made of polyurethane

SilverSport 06-04-2013 10:09 AM

Should be fine.

Em52 05-30-2014 04:33 PM

I have a 2014, and noticed this ladt night. The passenger side tail light cavity was filled already with some spray/expanding foam, most likely from factory; but the driver side is "wide open" to the wheel well, with even a fair slot over the bumper end at about 2.5" long and 1/4" at its widest?!! Strange they sprayed one side and not the other? I guess I'll be heading out to the local hardware store to get some insulating/expanding spray foam! Thanks for the thread!

Em52 05-30-2014 06:06 PM

Could it be posdible thr driver side is left open for "posdible" gas spillage, do drain down and out?

Guny 05-30-2014 08:22 PM

Make sure it's low expansion foam. Other stuff could cause a bulging problem you don't want.

MrSig 05-31-2014 05:22 AM

Quote:

Originally Posted by DirtyTeddy (Post 3823933)
Old thread and maybe the OP won't chime in but would I be able to use something like http://www.homedepot.com/catalog/pro...45dd79_300.jpg

Not sure what the difference between this and marine foam is, they both seem to be made of polyurethane

The marine foam is open cell and dose not let moisture sit in the panel. Most of the other stuff is not.

In my post I have the up date for the 2011 and up.


After all this time still great no moisture or rust in them.

Em52 05-31-2014 06:51 AM

Quote:

Originally Posted by MrSig (Post 11002497)
The marine foam is open cell and dose not let moisture sit in the panel. Most of the other stuff is not. In my post I have the up date for the 2011 and up. After all this time still great no moisture or rust in them.

Thanks for the great info! Can you give me a "brand" name for marine foam? Does "Great Stuff" sell it?

Not sure if you read this part in my post, but I have a 2014 and it came from factory with expanding foam already in the passenger (right) side!

Thanks again for the info.

Marley1970 05-31-2014 07:44 AM

Killer info... I will do mine, thank you!!

Lusus_Naturae 06-01-2014 01:16 AM

Did mine awhile back, besides looking at the bottom - look into the taillight opening and up. Both sides have openings at the top too. If you have the inner wheel well liners in, there's not much to see or worry about. If you want to pull the liners out like I did when I put Bushwacker flatties on - you need to look at filling the top up or the mud and water will spin off the tire and into the back and then sit on top of the foam and plastic you used on the bottom. I saw it right away before this happened, but it could easily enough happen.

MrSig 06-01-2014 04:17 AM

Your Welcome.
Not sure of the name but we have been buying it at Boat owners warehouse. It is like a West marine but cheaper. We just did a few Jeeps in my club a few weeks back. 1-2014, 2 -2013, 2-2011, and a 2009 Jeep.


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