Community Forums

2008MDY · 10-26-2018, 11:35 AM

Looking for names of Class A mud flap manufacturers. Good and bad feedback appreciated. Need to replace rear mud flap on our Monaco Coach.

BFlinn181 · 10-26-2018, 01:13 PM

Full-width mud flaps tend to 'sweep the highway' either physically if they are hung too low or by fanning air flow to stir up material that will fly back and land on your toad. I much prefer flaps behind the rear dual tires to knock down anything flipped up by the tires. JMHO

dennis45 · 10-26-2018, 01:24 PM

Quote:

Originally Posted by BFlinn181

Full-width mud flaps tend to 'sweep the highway' either physically if they are hung too low or by fanning air flow to stir up material that will fly back and land on your toad. I much prefer flaps behind the rear dual tires to knock down anything flipped up by the tires. JMHO

I agree, ditch the rear flap and install a set of flaps behind the duals.

Craig36 · 10-26-2018, 02:44 PM

This subject comes up often, and there are some different opinions,

The fact is.... that all motorhome I have ever seen in recent years already have mud flap behind the wheels. No need to install mud flaps!

So now we come to the heavy rock guard. If it is the heavy solid type hanging about an inch or so above the road, nothing coming off the rear tires is going to fly up.

I am on my fourth motorhome, and have been RVing since the late 70's...and never once have had anything other than dirt go onto my toad.

TonyMac · 10-26-2018, 02:53 PM

On my DP, the rock guard -- the big long beast closer to the bumper -- is mounted right under the radiator. I also have mud flaps behind the rear wheels. The rock guard acts like a air dam, building pressure in front and a vacuum behind. The pressure in front forces air up into the radiator, and the vacuum behind helps draw air thru the radiator, similar to air dams on everything from sports cars to semis.

TonyMac · 10-26-2018, 03:01 PM

PS. I had to replace mine due to damage from the repo process. I have data on my other computer. I will find such and relay.

ByeTheWay · 10-26-2018, 03:10 PM

I too recommend Mud Flaps behind the duallys and leave the ad flap off.

Dutch Star Don · 10-26-2018, 03:53 PM

Dura Flap makes really nice custom flaps.

https://duraflap.com/

I've been running a rock guard on a DP for almost 15 years, without issue.

BFlinn181 · 10-26-2018, 04:09 PM

Quote:

Originally Posted by TonyMac

On my DP, the rock guard -- the big long beast closer to the bumper -- is mounted right under the radiator. I also have mud flaps behind the rear wheels. The rock guard acts like a air dam, building pressure in front and a vacuum behind. The pressure in front forces air up into the radiator, and the vacuum behind helps draw air thru the radiator, similar to air dams on everything from sports cars to semis.

If you have a rear radiator, the 'air dam' also could pull plastic bags off the roadway and direct them into your radiator. I'm not sure it provides any better airflow and cooling through the radiator than an RV without the full-width flap.

TonyMac · 10-26-2018, 05:59 PM

Quote:

Originally Posted by BFlinn181

If you have a rear radiator, the 'air dam' also could pull plastic bags off the roadway and direct them into your radiator. I'm not sure it provides any better airflow and cooling through the radiator than an RV without the full-width flap.

The plastic bag scenario is possible with or without the air dam, but mitigated by the mesh under the engine. 30,000 miles and no plastic bags yet.

chuckftboy · 10-26-2018, 08:06 PM

Last year my son hit a thrown re-tread on the highway. His rear flap saved his very custom Jeep from some serious damage, not so for the flap though.

My rear flap is installed correctly, 4" off the road and I have never had any toad damage from towing.

SarahW · 10-26-2018, 11:01 PM

Quote:

Originally Posted by Craig36

This subject comes up often, and there are some different opinions,

The fact is.... that all motorhome I have ever seen in recent years already have mud flap behind the wheels. No need to install mud flaps!

So now we come to the heavy rock guard. If it is the heavy solid type hanging about an inch or so above the road, nothing coming off the rear tires is going to fly up.

I am on my fourth motorhome, and have been RVing since the late 70's...and never once have had anything other than dirt go onto my toad.

An inch above the road? That sounds like a recipe for trouble at 65 MPH.

Toribk · 10-27-2018, 04:13 AM

X2 for Duraflap....they can replicate your current rock guard or put any name or message you want on the polished stainless steel plating.

Tha_Rooster · 10-27-2018, 05:25 AM

My opinion,I have the full flap which I believe saved my toad from my tire blow out. It had lots of steel tire cord stuck into the chains. I believe if installed correctly (not dragging the ground) they do more good than possible harm.