DIY Engine Splash Shields

doofenshmirtz

New member
So I wanted to get some splash shields made since I’ve never had any. I’ve gone through all the threads and have had Rad Rubber shields in my shopping cart a dozen times but could never bring myself to pay knowing I could do it myself.

I’ve seen the trash can plastic ones and the rubber sheet ones, and I downloaded the scans someone posted of theirs to be able to redraw the file.

I went so far as to have my office laser cut some sheet metal ones to see if it would work, but the factory design won’t work. Still might do some metal ones eventually.

Anyway, the rubber sheet one seemed like a good start. The biggest factor is getting as small of a sheet as possible. That’s where I think I’ve done something not yet documented/answered. I think your minimum rubber sheet size is going to be 12x36. That size will only work while hand cutting, but at that size, you can get the same material Rad Rubber uses for half the price. They use 1/8” nitrile, and that can be had on Amazon for about $26 currently. Add a few bucks for clips and you can save about $28 making your own. If your time is worth more than that and you want rubber/nitrile or you’ve got a body lift that makes the splash shield bigger, then Rad Rubber is going to be the way to go. You can also easily go to 1/16” thick and save some extra money too.

In case anyone wants to see how to lay these out for the smallest sheet here’s a photo with everything fitting in a 12x36 bounding box. I’ll document how things work outlasted this week.

6d41934177f41d807999da6508fa568c.jpg
 
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I’m interested in seeing how these get mounted on. I’ve got a 1” body lift and have that gap. I’ve bounced around the idea of doing it myself but I’ve been in your same shoes with Rad Rubber and decided if I should pay to avoid the trouble.
 
So I wanted to get some splash shields made since I’ve never had any. I’ve gone through all the threads and have had Rad Rubber shields in my shopping cart a dozen times but could never bring myself to pay knowing I could do it myself.

I’ve seen the trash can plastic ones and the rubber sheet ones, and I downloaded the scans someone posted of theirs to be able to redraw the file.

I went so far as to have my office laser cut some sheet metal ones to see if it would work, but the factory design won’t work. Still might do some metal ones eventually.

Anyway, the rubber sheet one seemed like a good start. The biggest factor is getting as small of a sheet as possible. That’s where I think I’ve done something not yet documented/answered. I think your minimum rubber sheet size is going to be 12x36. That size will only work while hand cutting, but at that size, you can get the same material Rad Rubber uses for half the price. They use 1/8” nitrile, and that can be had on Amazon for about $26 currently. Add a few bucks for clips and you can save about $28 making your own. If your time is worth more than that and you want rubber/nitrile or you’ve got a body lift that makes the splash shield bigger, then Rad Rubber is going to be the way to go. You can also easily go to 1/16” thick and save some extra money too.

In case anyone wants to see how to lay these out for the smallest sheet here’s a photo with everything fitting in a 12x36 bounding box. I’ll document how things work outlasted this week.

6d41934177f41d807999da6508fa568c.jpg

Hm, i just made my own splash guards last week, i literally printed the pdfs out on 8x11 paper, then cut and tape them together. Went to a local rubber shop and bought a 4'x1' sheet of 1/16 nitrile buna rubber for $26 (Canadian dollars) and cut them out and punched the holes. all in all pretty simple and saved me about $70 from buying from Rad
 
So the rubber sheet came in, and it was a perfect size for the splash guards. The metal templates made things really easy. I just traced everything with a sharpie and then used tin snips to cut the sheet: it was like cutting paper using those... I grabbed a drill bit to do all the holes.

I’m pretty sure it took longer to pull out all the old fasteners than it did to trace and cut the new rubber pieces, but I was done in less than an hour.

While I was down there, I noticed a nut had come off my sway bar so I fixed that after I took the picture. I spent a total of $33 on everything, which includes a few hundred more cheap Chinese fasteners.


6706f7b15b71812e2c64fd67cd760e60.jpg
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Sent from my iPhone using Tapatalk
 
So the rubber sheet came in, and it was a perfect size for the splash guards. The metal templates made things really easy. I just traced everything with a sharpie and then used tin snips to cut the sheet: it was like cutting paper using those... I grabbed a drill bit to do all the holes.

I’m pretty sure it took longer to pull out all the old fasteners than it did to trace and cut the new rubber pieces, but I was done in less than an hour.

While I was down there, I noticed a nut had come off my sway bar so I fixed that after I took the picture. I spent a total of $33 on everything, which includes a few hundred more cheap Chinese fasteners.


6706f7b15b71812e2c64fd67cd760e60.jpg
fbad390ede05a0aa24003907e6dcf69d.jpg
770c3d99fee6b4448c880d6baeb62dea.jpg
e9cdace58992e97badf68e6474fb8f1f.jpg
57a8212636175ae41425ecd6d1517efe.jpg



Sent from my iPhone using Tapatalk

Do you have a link for the fasteners?
 
Do you have a link for the fasteners?

To be honest, I'm not pleased with what I got. If I gave you the link, it would be more to see what NOT to buy. I bought a huge set of like 600 parts, and there was only one type of fastener in there that worked, and I used 1/3 of them on just this project :/
 
I love my rad rubber design splash guards. Came with everything needed to install. The clips hold it in real good, a couple of different sizes all together. Great quality as well, I'm sure it'll last a long time.

Sent from my SM-G955U using Tapatalk
 
I made a set as one of my first “mods” a couple of years back since mine were missing when I got the truck. I used some 1/8” rubber mat that came in a roll from Home Depot. I had some left from a work project, and it was perfect. Has a nice texture resembling bedliner. I used the .pdf file someone posted on here for the patterns. The hardest part was finding fasteners that fit properly! I ended up drilling a couple of them a bit larger to accommodate some thicker push fasteners that I had which were maybe 3/8” diameter. Since they heavily salt the roads up here in the winter, I wanted the shields to keep as much out of the engine bay as possible! I don’t have a body lift though, so I was able to just use the templates as they were.
 
Love this idea but have an idea on how to make these better. There are extra holes in areas that would allow for larger shields which would further protect the engine bay. Has anyone made oversized guards to cover the whole area under there? Maybe even one large piece that goes up over the shock tower and over to the other side?
 
Love this idea but have an idea on how to make these better. There are extra holes in areas that would allow for larger shields which would further protect the engine bay. Has anyone made oversized guards to cover the whole area under there? Maybe even one large piece that goes up over the shock tower and over to the other side?

Yup.
Used some clear plastic sheet to make a template.
Covered the whole hole on mine, worked very well.
Much cleaner engine bay than OEM and no noticed temperature increase. (scangauge2)

8.5mm push clips.

DIY - Creating and Installing 4th Gen Wheel Well Splash Shields

New...and gratuitous Elka plug.
 

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Yup.
Used some clear plastic sheet to make a template.
Covered the whole hole on mine, worked very well.
Much cleaner engine bay than OEM and no noticed temperature increase. (scangauge2)

8.5mm push clips.

DIY - Creating and Installing 4th Gen Wheel Well Splash Shields

New...and gratuitous Elka plug.

These look great! I know this topic has been discussed a dozen times, but it's nice to have a good bit of the high notes in one thread for other people.
 

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