Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
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Rock Tamers/
24 Inch Wide/
Rear Pair/
No-Drill Install/
Universal FitItem # ERT00108
Retail:$294.99
Our Price: $269.99
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Protect your truck and towables from flying rocks and debris with these fully adjustable mud flaps. The heavy-duty rubber flaps slide onto your ball mount or tow bar, and they adjust horizontally and vertically for a custom fit on your vehicle.
Features:
Specs:
Note: To use Rock Tamers, there must be at least 1" of clearance between the back of the ball mount face and the trailer hitch receiver opening.
Rock Tamers are adjustable to fit your specific vehicle's wheelbase. The mats move horizontally along the support rods and expand from 67-1/4" to 96-3/4" wide. The mats can also be adjusted vertically so that you can maintain proper ground clearance no matter the load you are carrying.
The mats include pre-cut lines on the back in 1-1/2" sections so that you can trim the Rock Tamers to the appropriate length for your vehicle. A punch tool is included to create holes in the mudflap for attaching the installation clamp bolts.
Installation Details 
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See All Vehicle FitsVideo of Rock Tamers Heavy-Duty, Adjustable Mud Flap System for 2" Hitches - Matte Black
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Welcome to etrailer.com. Today we're going to show how to install and use the rock tamers mud guards, part number ert00108. Now this kit is also available for 2 1/2 inch hitches and that part number is ert00110. First thing we nee to do is take our hub and slip it over the ball mount that we'll be using in our hitch. We'll slide our ball mount back into the hitch and secure it with the hitch pin. On the under side of the hub you'll see some bolts with a nut and a couple of washers.
This is how we're going to attach the hub and secure it to our ball mount. First we're going to tighten down the bolt. We'll move back and forth, from one side to the other, to make sure we tighten the bolts down evenly. That's what's going to hold our rock tamer hub into position on top of our ball mount. Now I'll come back with a wrench, and tighten down the nuts. Now that we have this hardware set, we can move on to assembling the rest of the system.
The next thing we're going to do is install the rods inside our hub. We'll loosen all six of these allyn head bolts. With all the bolts loosened we can take our rod and fit it through. With the rod in place we can put our end cap back over the rod, and then reinstall the hardware that secures the end cap. Now we'll repeat the same procedure for the left hand side rod. Next we'll slide the flat clamps over the rods, but we're not going to secure them yet with the hardware.
We won't do that until we have the flaps installed. We'll do the same on the other side of the vehicle. You do want to make sure that the square mounting hole is facing out so that we can properly orient our carriage bolt when we go to secure it with the hardware. Now we're going to measure to determine how long we need to cut our mud flaps to. We're going to measure from the bottom of the support rod, right here on this line, down to the ground. Then we're going to subtract three or four inches for proper ground clearance.
We're at about 23 1/2 inches to the bottom of the support rod. We're going to go ahead and take off 3 1/2 so we need to cut our flaps at 20 inches long. What we're going to do is we're going to find the closest pre-scored line to our 20 inch mark and we'll follow that. This line right here is right near our 20 inch mark, so that's where we're going to trim our mud guards from. We'll use a straight edge to help make our cut nice and clean. Now we can take either the punch included and punch out our manning inaudible 00:02:36 holes or you can also use a drill and drill bit. We'll show you how to do both. We'll center our punch on the hole, and we'll use a hammer to start driving it through. Make sure that you place a piece of wood underneath so that you don't damage the tip of the punch. With our flap cut to length, and all of our holes punched, we'll go ahead and repeat the same procedure for the opposite flap. Now that we have our flaps cut to fit, we're going to insert the flap into the clamp system. It might be a little bit tight getting the flap inside the clamp so if you need to you can wet it down with some water or some soapy water to help it slip into place a little bit easier. We'll feed the hardware through, and we'll start the washer and the nut on the back side of the bolt but we're not going to tighten it down yet. With all five of our fasteners in position, we'll move back to the drivers side, and repeat the same procedure. We've got three positioning holes here for our flap clamp. The inner most hole is typically used for smaller mid-sized vehicles, the center hole will be used for full-sized vehicles, and the outer most hole is usually used for larger vehicles like dual rear wheel pickups or small motor homes. We've got an after-market set of wheels and tires on this vehicle, and with the exhaust where it is, we're going to go ahead and use this outer hole. It's still going to provide protection but it's going to keep the flap away from the exhaust and covering our tire. We'll line up the wholes. Feed our bolt through and attach it with a nylon lug nut at the back. We'll go ahead and tighten this one down. We'll do the same on the other side of the vehicle. Now we're ready to attach our trim plates. We'll hold the trim plate into position. We'll take our trim plate, feed one of the safety head bolts through, put our spacer on the other side, and push the hardware through, and then secure it on the back with a washer and nut. Now that we've got all our hardware started, we're going to go ahead and tighten them down. We'll take the included safety bit wrench, stick it in the bolt head and we'll take our socket wrench on the back, to tighten down the nuts. With all of our hardware inserted and tightened down, we'll move to the other side and attach our trim plate on the drivers side. Now we're going to tighten the five clamp holds on the flap clamp. We'll repeat the same process for the five clamp bolts on the drivers side. Now we're going to do the final adjustment on our rods. We're going to break these bolts loose, let the arms come down just a little bit and then we'll tighten them back up. Next we'll twist our support rod until our flaps are hanging nice and plumb, and then we'll take our 5 millimeter allyn head and tighten the 3 clamp bolts down. Then we'll repeat the same process for the drivers side. That does it for the rock tamers mud guards, part number ert00108. .
Average Customer Rating: 4.9 out of 5 stars (61 Customer Reviews)
Protect your truck and towables from flying rocks and debris with these fully adjustable mud flaps. The heavy-duty rubber flaps slide onto your ball mount or tow bar, and they adjust horizontally and vertically for a custom fit on your vehicle.by: Jerry R05/06/2015
The Rock Tamer system is a high quality product that assembled and installed just as instructions said it would. Looks great on my truck and hopefully will keep those rock dings from occurring on my trailer. I have ordered numerous items from e-trailer over the last few years and they have become my "go to" site because I know I will get the best price and always receive their amazing customer service. They are in Missouri and I am in Washington state and I almost always get my order in 3-4 business days. Very pleased.... 190854
Jerry thanks for purchasing our Rock Tamers system and for supporting Etrailer!
Tom B from
- 05/12/2015They work great, still look new
Jerry R - 05/05/2016by: Rob05/27/2015
Easy to put together, high quality parts, works great on 2012 F350 King Ranch 6.7 SRW. No issue with exhaust clearance on my truck, I would be concerned if using with a rear tailpipe exit truck (Duramax). 198162
I like the product very much. I just used it on a 2400 mile round trip. Really nothing to suggest for future improvements. The only nit pick is the collar loosened up on the hitch a few times. Maybe add 1 more set screw at the top for more bite. Other than that, right on the money.
Rob - 06/07/2016by: Bill B06/09/2014
Spendy, but well built and very sturdy. Be prepared for some assembly. 134869
Im still using the above items and have had no problems with them. Thanks.
Bill B - 06/09/2015by: Dennis w.06/28/2013
just got instruction were easy to ready took me about 25 minutes to pput together and install on my truck very happy would tell others . Very fast shipping 86568
Still good product would recommend to anyone still in good shape has not faded or torn like some products do
Dennis w - 12/27/2014by: Dwain H03/29/2016
George, new Class 5 Curt Receiver, RV plug bracket with RV plug, Curt 14K pound hitch, Rock Tamer mud flaps. Everything was ordered and received in a timely manner. Every item installed with absolutely no problem. I am very pleased with ETrailer products. All that is left to do now is go pick up my new toy hauler. Thank you, Dwain H 242300
by: Ron05/01/2018
Assembly was straightforward using the well written instruction booklet that came with it. It seems sturdy and well built and I am sure it will be effective in protecting my trailer. The one problem I have with it is that it is very difficult to remove and reinstall. My hitch is already very heavy and with this thing permanently attached to it impossible to carry and takes a lot of room to store. During a trip I can see leaving it on, but once home, I want to remove it so I can use the truck for day-to-day trips. I wish there was a way to remove the Rocktamer from the hitch before removing the hitch from the truck. 502875
by: Bob L09/17/2012
This is a well designed piece of equipment with heavy duty materials used. I found that a hack saw was very helpful in cutting the rubber flaps to the requisite dimension. I did not have a band saw handy which was the recommended cutting tool if the utility knife proved too onerous in the cutting process (which it is). The one improvement I suggest is that the Rock Tamers nameplate be pre-affixed at the time of manufacture rather than have the consumer spend time doing this chore. Mounting the flap system to the hitch is a snap, actually a tightening of 2 bolts. The result was a system that indeed tames the rocks. 54949
When cutting the flaps make sure to use a new blade and a straight edge that runs the full width of the flap.Make sure to place a piece of cardboard or wood under the flap where you are cutting. If using a new blade it should only take 2-3 passes on the pre-molded score marks to cut through the rubber.
Tom B from - 02/13/2015 by: KAP07/22/2017
Look no further these are the debris flaps to have for your truck. They are adjustable and hold tight. Well designed and far better than anything I owned previously. Note; you might have to trim the flaps and punch new holes with the tool they provide. It is easy but make sure you cut the flaps straight. I wish we could make custom metal inserts rather than advertising for "Rock Tamer." I left the metal signs off of mine and it looks great and clean. If you tow a boat or hauler these are must haves. P.S. I tow over 15,000 miles a year so this review is not from an occasional towing reviewer. 409232
by: Tom08/04/2018
This rock guard was relatively easy to install with regular hand tools. It took a little longer than I had anticipated as you have to do some custom cutting of the flaps and also punch the holes for the bolts to go thru. Lots of adjustments to be made once you get it in place. I have to say though that it performs perfectly and protects the front of our Airstream. We have not had anything hit the front of our airstream and we travel lots of gravel roads as well as highways. Highly recommend this product if you need to protect something that you are pulling. 550008
by: Lynn B07/12/2017
Very easy to install looks like excellent coverage from the rear wheels. It's easier to cut the flaps with a jig saw and drill the holes with a drill bit makes it much faster. I'm also installing tow Towtector stub 2 inch shaft so I don't have to bang my shins and also installing a Curt 2 inch anti rattle device to take care of the play. 404844
by: Dana04/04/2018
Purchased my Rock Tamers from etrailer.com. It arrived in six days. I emptied the box, read the instructions, and the following day assembled the device in about an hour and a half. Everything went together as per the instructions. I tow a 28 foot Airstream and this will protect it from rocks coming from the rear wheels. A fellow Airstreamer in the park had one which is where I got the idea. It will now live on my tow vehicle since the combined weight is more than I can single handedly remove by myself. 492609
by: Mike04/12/2013
Hello I ordered my rock tamers on sun. April 7 th they arrived promptly on thur. April 11 th.. Had free shipping on this order so that was nice. Very impressed with how fast this order was sent and delivered. I did read the not so nice reviews you guys get ,but you have to take those with a grain of salt. So bottom line is very impressed with e trailer and rock tamers. Thank you I will stop in sometime when I come across I - 70 in my work travels.... Thanks again .. Mike m. , from maryland 75578
by: Mike04/12/2013
Hello I ordered my rock tamers on sun. April 7 th they arrived promptly on thur. April 11 th.. Had free shipping on this order so that was nice. Very impressed with how fast this order was sent and delivered. I did read the not so nice reviews you guys get ,but you have to take those with a grain of salt. So bottom line is very impressed with etrailer and rock tamers. Thank you I will stop in sometime when I come across I - 70 in my work travels.... Thanks again .. Mike m. , from maryland 75579
by: Sam G.06/10/2016
When I called to order the Rock Tamer mud flap I needed to get them fast. I was leaving on a trip to buy a new Airstream trailer and the dealer was eleven hours from my home. I was helped by a very helpful women named Jennifer. She saw to it that the mud flaps were sent out that night and followed up by contacting me with an update. I am serious when I say I have never been treated better. Thanks, Jennifer, for the great service. 259932
by: John M.09/03/2013
Item went together pretty well. They stick out pretty far to catch anything from the tires but I chose to keep mine in slightly so it doesn't give that quite dumbo look or in too far where they will be useless. I also put on a different set of mudflaps instead of the ones that came with,as I wanted a different look and added some more bling. 98032
What mud flaps did you put on yours? Do you have pics? Thanks!
-- comment by: Rhett - 12/13/2014John please make sure that the mudflaps are adjusted two inches past the outside of your tire for optimum protection. This can be done with holding a straight edge like a yard stick against the tire....then adjust the Rock Tamers.That dumbo effect will protect your towable and thats what counts :Thanks for purchasing Rock Tamers!!!
Tom B from - 02/13/2015by: Jeff M.06/14/2017
Everything as advertised... so far. Havn't had a chance to use on a trip yet. Will try to follow up soon. Installation instructions were great. All hardware was included... didnt have to run to pickup additional nuts/ bolts. Must have minimum 1" clearance btwn receiver and hitch flange. As ALWAYS.. etrailer XLNT service and follow up. 394218
Working great. Definitely helps keep the road debris at a minimum, added advantage is they help keep the front of the rig cleaner in all types of weather conditions. Would recommend.
Jeff M - 06/14/2018by: Happy09/01/2015
We just installed these. Haven't had the chance to actually see how they perform. But they seem extremely durable! They were easy to install. They arrived at our door rather quickly and customer support at e-trailer has been great. We have ordered from them before. We will continue to be customers in the future. 223279
by: Benny P11/05/2016
This is not the first time ordering from etrailer nor will it be the last. As usual my package was delivered ahead of time with no issues. Have never received anything from E Trailer that was not as advertised. Special thanks to Shery for all the help. 314192
arrived in excellent condition. was easy to assemble and install on truck. works great for keeping rocks and other road trash off front of fifth wheel . another great product and service from etrailer
Benny P - 11/15/2017by: Daniel S.04/05/2017
Excellent product. Made it in time to go pick up my new boat. This should help keep the stones and stuff from the road hitting the boat and trailer. Took me about an hour and it is all mounted and adjusted to go. 363314
by: Larry s09/20/2016
Very happy with product. It is easy to put together and stays together. Sturdy, well made, and if need to protect your truck and trailer from road rocks and debri this is the product to use. 296834
by: Gary M.04/03/2013
Quality material, easy directions, took me 11/2 hrs. to put together, good price, looks good. First trip with our new travel trailer and not one mark on the front, what more could you ask for. 74034
by: Terry S.06/03/2017
Great set of mud flaps. Easy too understand directions, easy to install. I should have bought these years ago. etrailer made the ordering hassle free. Ask for Jesse in customer service. 388436
by: Sean02/16/2018
Worth the buy, had an issue at first cause I bought the wrong one. Contacted etrailer and they quickly fixed my order for me. Purchased wed and received it Friday. Couldn’t be happier. 476443
by: Paul C01/14/2014
Great product. I'm handy, have help and tools and it took me about 2 hours to assemble (carefully). Looks pretty good and seems like it will do the job. NOT cheaply made, which is great! 112745
by: Gordo08/21/2017
Great service again from etrailer! Rock Tamers worked great! A little bit of a challenge to get together. In the end it all worked. Thanks etrailer! 423365
No changes still working great!
Gordon P - 08/26/2018by: Daren06/19/2016
Great product. Great service, had a glitch in shipping. They overnight shipped the product at no extra charge to make things right! Im very happy. 262539
by: Rex07/08/2016
Have not used it yet. It went together well and looks great. It was easer than I thought to cut the flaps utility knife work fine. Nothing missing. 269636
by: Jim F02/24/2017
This was very easy to install! And it's expandable, so we can use it on both sizes of vehicles to help prevent rock chips when pulling a boat. 345148
by: Chris Q08/19/2017
The ease of ordering was great, the order arrived promptly, and I think it will work fine for me even though I am not putting it on a truck. 422488
by: Jose03/27/2017
they look great and with minor trimming on the top they can be fitted to your truck. great hardware that comes along with it. 358954
by: Dan05/14/2018
Easy to put together and install on my truck. I have been very happy with the product and would buy again. 508426
by: Larry R from Texas07/25/2012
Very high quality but do not expect to mount them in an hour. Best if you have a helper. I am very pleased 49313
by: Jackie J09/28/2015
Easy install. We got it in four days. Fits my truck even with 37 inch tires. Now to hook up the RV and go. 228163
by: James T03/12/2017
Shipping was as described and communication was great. The Rock Tamers were a breeze to install. 351576
by: John S.09/12/2015
Assembly easy and quick. Quality excellent. Free delivery took only two days. Thanks trailer!! 225116
by: Jason10/31/2016
After a year, the product held up well and still looks as good as the day I got it. 312295
by: Paul05/09/2014
Not used on the road yet but does fit the Sierra 2500 as equiped by GMC. 129792
by: Rion04/25/2018
Great product! Packaged well and had easy to read instructions 500694
by: Vernon T.07/02/2014
Great product, great service, all in all a great transaction! 138708
by: Ralph R.12/03/2012
Well-made, totally functional. 60505
by: Dustin09/12/2013
Great product. Fast shipping. 99688
by: Martha05/23/2018
Love the custom fit options. 512395
by: Carl Hansen09/26/2013
Love Mud Flaps !!! 101589
by: Gregg04/12/2013
Looks nice! 75644
by: Terence A03/08/2018
Review from a similar Rock Tamers Rock Tamers in Mud Flaps
I ended up buying the Enkay Rock Tamers and they don’t trigger my back up alarm when the trailer is not hitched. I’ve attached some photos showing how I have them mounted. The attachment brackets that secure the arms to the hitch are almost vertical, I couldn’t show that well in a picture. Hopefully, you can use this information to help the next person with this type of enquiry. The truck is a 2015 F250. The measure tape pictures show the outboard sensor on driver and passenger sides, respectively. 482676
by: Stephan07/04/2018
Review from a similar Rock Tamers Rock Tamers in Mud Flaps
Product shipped fast as always from etrailer and is very high quality. It took about an hour and a half for installation and adjustments. One thing that I needed to install was a hitch tamer to tighten up the receiver reducing tube so the set up wouldn't move around because of the slop in the hitch and tube. Fortunately I had one from another set up I had and when installed, it made the RockTamer set up solid! See pictures attached I would recommend this product! 529917
by: Steve B06/27/2018
Review from a similar Rock Tamers Rock Tamers in Mud Flaps
These mud flaps are great. Made from high-quality materials. They have a custom look, while allowing for adjustment to fit any truck/trailer configuration. Adjust up/down, in/out, whatever you need. My Ford F450 has a class V hitch so I ordered the Blue-Ox 2-1/2' to 2" adapter sleeve to mount the bracket to. I leave the reducer attached to the mud flap bracket, so once assembled, installation is literally a minute or less, just insert the reducer with mud flaps attached into the receiver and install the pin. 527332
by: Keith03/31/2014
Review from a similar Rock Tamers Rock Tamers in Mud Flaps
Nice product, wanted something for a 2.5" ball mount and this worked well. Tow a 37' go fast boat and no issues on a 850 mile ride. 123059
A year later and several thousand miles later they are still in great shape. I sometimes have to retighten the boltslock nuts that hold it to the ball mount. I plan to grind that are flat on the ball mount to get a better bite. Still highly recommend!!!
Keith - 03/31/2015by: Rick05/06/2018
Review from a similar Rock Tamers Rock Tamers in Mud Flaps
Excellent customer service. Ordered on Saturday evening and was delivered on Thursday. Easy installation about 1 1/2 hours, built stout and packaged very well, still need to trim flaps but I have not put a full load on the truck yet ( next weekend). I also made an adapter to store on the back of my 5th wheel when I get were I am going. Would highly recommend this product an e- trailer. 504919
by: ED H.07/03/2016
Review from a similar Rock Tamers Rock Tamers in Mud Flaps
Thanks George. Your company has very good service, and the product works great. The instructions were easy to follow for the installation of the mud flaps. The product kept the front end of my 5th wheel from getting road chips from rocks and other debris. It works great for me and I recommend it to others. Thanks, Ed 267797
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