4Runner Armor, 5th Gen Mods, Install, Off-Road, Rock Sliders

C4 Fab Rock Sliders – 5th Gen Toyota 4Runner

Updated 6/8/20 / Read Time: 6 mins

C4 Fabrication Rock Sliders

C4 Fabrication Rock Sliders Install and Overview on 5th Gen 4Runner

The C4 Fab Sliders are a good option. My girl originally bought these for her 2016 SR5 but they will end up going on our 2014 trail.

After looking at the step a little closer in detail, we felt that these sliders are a better fit for our 4Runner that will actually use them (and, I really wanted them). On another note, my girl forgot to order the plates that bolt on top of the sliders (well see how they work without).

Our 2016 SR5 is more of a mall crawler and child pick-up so we need to get some steps that can accommodate a 3-year-old learning how to step and a woman who wears high-heals.

The Slee Sliders are a big contender but at $1000, a little pricey for how they would be used (no off-road use at all). As we are still in the hunt for a pair of sliders for the SR5, we will be throwing the C4 Fab sliders on the 2014 Trail.

C4 Fab Cost

  • $798 + $90 Residential Freight + $199 to Powdercoat = $1087

The C4 sliders are well-priced compared to other sliders and nerf bars. Weighing the cost of these rock sliders will determine how much your 4Runner will be on and off-road. If you are strictly getting these for looks, they may not be the best option for you, because of the price.

On a previous post, we broke down the cost of many different rock sliders, nerf bars, and steps. Before you jump on a  set of sliders, do your research and move on something that you know is right for how you use your 4Runner.

There are other rock sliders, nerf bars and aftermarket running boards out there that are much lighter and for a lot less money like the N-fab nerf bars (only $340), however, these will not hold-up at all compared to the C4 sliders.

If you are looking for a pair of aftermarket running boards or rock sliders because you may actually need them on a remote trail somewhere, then these are a great option. The $1000 price tag (if you get them powder coated) is well worth it if you have off-road ambitions.


  • Sliders that double as Steps
  • Custom Trail, TRD stamp options
  • Bolt on System (No Drilling or Welding)
  • Thick Plates and Gussets
  • Slider legs sit at 45-degree angle for enhanced off-road performance
  • Dimple Step Plates (Foot Traction)
  • Option to fabricate without step plates
  • Removable Step Plates (Cleaning and option to leave off & Coating Options)
  • DOM Steel Tube (Drawn Over Mandrel – Super Strong)


  • No powder coat options available (You need to take it in somewhere local)
  • 4-8 week production timeline (Who likes waiting?)
  • Super Heavy


C4 Fabrication Rock Sliders

When you’re looking into a set of C4 Fab sliders, it is important to note that there is quite the difference between the KDSS version and the Non-KDSS. The Non-KDSS version is a full plate design on both driver and passenger that mounts to your frame.

The KDSS version has very distinct cuts on the driver side to accommodate the KDSS reservoir or pump (or, whatever that section that is mounted to your frame is). If you buy a set of Non-KDSS sliders and try to mount them, you simply will not be able to.

Not unless, you take your rock sliders into a 4×4 shop, cut them yourself or have an iron shop chop them up. This issue was caused for us because my girl with the SR5 (Non-KDSS) purchased the sliders for her 4Runner and then later realized that there was no way she would be able to step on them with high-heels. This brought on the install for the TEP (Trail Edition Premium) with KDSS.

We took the C4 Fab sliders into our local fab shop who we have a pretty good relationship with and they chopped them apart. Thankfully, C4 Fab sent us the CAD mock-ups of the SR5 and the KDSS sliders back to back. With this, we were able to cut the same lines in order to mount the sliders.

Working With C4 Fab

C4 Fabrication Rock Sliders

Working with C4 Fabrication was easy. Caleb, the owner, worked with us to get the correct CAD mock-ups together in order for our local fabrication company to make the cuts.

Customer service is huge in any industry, but in this industry, it really is hard to hard to find a fab company that responds to emails in a timely manner, truly cares about their customers and will go the extra mile to make sure everything is going smooth.

There are many companies out there in this industry who have shit for customer service and C4 Fab holds it down. If you are looking for a set of rock sliders for your 5th Gen, C4 is a solid choice.

Two Rounds of Powder Coating the Sliders?

C4 Fabrication Rock Sliders

Initially, we had the C4 Fab sliders powder coated in black. I had my buddy drop them off at the powder coat shop and to tell the guy (textured matte black – TEXTURED). Of course, we picked them up three weeks later and they were high gloss. Blinding your face gloss, black. If you want something done right, you have to do it yourself, I know.

It was a good thing we needed to chop them apart to fit out KDSS because we decided against the gloss black and just sent them straight back to a different powder coat for textured matte bronze powder coat from Prismatic Powders. On a side note, I have been writing this blog post for over two months, so we will see what happens with the final install and how everything looks.

We finally got the matte bronze rock sliders back and they are pretty epic. In the dark and shade, they look black. In the sun, you can really see the bronze color come out. While in the dark shade, the sliders look amazing. But, in the sun, they are absolutely stunning. You can see bronze and tiny flakes of gold. We did go pretty fancy on powder coating these sliders. And, at the end of the day, they are going to get beat to shit so it will look nice for the better part of a year. It was just nice to do something different.

Install with Snail Trail 4×4

Step #1 – Unbolt KDSS and Brake Line

C4 Fab Rock Sliders 5th Gen 4Runner Install - Unbolt KDSS and Brake Line

Step #2 – Unbolt Gas Tank Skid Plate

C4 Fab Rock Sliders 5th Gen 4Runner Install - Unbolt Gas Tank Skid Plate

Step #3 – Remove KDSS Skid Plates

C4 Fab Rock Sliders 5th Gen 4Runner Install - Remove KDSS Skid Plates

Step #4 – Plastic PRY Tools for KDSS Lines

C4 Fab Rock Sliders 5th Gen 4Runner Install - Plastic PRY Tools for KDSS Lines

Step #5 – Support Jacks and Align Sliders Into Place

C4 Fab Rock Sliders 5th Gen 4Runner Install - Jack Stand Support Sliders

Step #6 – Use Loctite and Prepare for Bolting Down Sliders

C4 Fab Rock Sliders 5th Gen 4Runner Install - Bolt Down Top Slider Holes for Support

Step #7 – Bolt Down Sliders & Attach Gas Tank Skid

C4 Fab Rock Sliders 5th Gen 4Runner Install - Bolt Down Sliders

Step #8 – Chop off Small KDSS Skid Plate Tab

C4 Fab Rock Sliders 5th Gen 4Runner Install - Small KDSS Skid Plate

Step #9 – Passenger Side is Easy

C4 Rock Sliders Install Step #9 - Passenger Side is Easy

Step #10 – Frame Bolt

C4 Rock Sliders Install Step #10 - Frame Bolt

Installation Complete

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May 23, 2019 11:14 am

looking at purchasing these… do you wish you would have gotten the covers instead of leaving it open and bare?

Your thoughts if you could do it over again?

August 18, 2018 4:13 am

I just installed a set on my 4Runner, but I have a concern about the rigid KDSS lines. I pried them over to allow for the slider to slide (no pun intended) behind them. Once I got everything fully mounted I noticed that there is little to no clearance between the rigid KDSS lines and the slider mount plate. I’m just worried about longevity, last thing I want is a line to fail due to rubbing. Did you notice any issues with clearance or have you had any issues since your install?

July 24, 2018 12:16 am

Sweet! And mother and child approved as steps for the mall days?

July 23, 2018 9:44 pm

How are they holding up? What’s the verdict of them as a “step,” without the top step/plates?

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