RV.Net Open Roads Forum: Class A Motorhomes: Rock Guard

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Timothy2001

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Posted: 07/12/19 01:13pm Link  |  Quote  |  Print  |  Notify Moderator

What's the consensus on how much distance on level ground between the road and the bottom of the rock guard assuming it's a solid rubber piece and not the brush type?


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Posted: 07/12/19 04:25pm Link  |  Quote  |  Print  |  Notify Moderator

5" but rear overhang is one of the factors.


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Posted: 07/12/19 04:36pm Link  |  Quote  |  Print  |  Notify Moderator

mine is about 1 1/2 in sitting on level ground. Its mounted on chains so it swings back if it touches the ground.

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Posted: 07/12/19 10:16pm Link  |  Quote  |  Print  |  Notify Moderator

If your rock guard touches the ground, it will kick up rocks as you're going down the road. 5 inch clearance on level ground is what you're looking for. Any closer and you're going to defeat the purpose of having it. If it's all the way at the back of you're MH, the height my vary significantly when you're loaded and ready for travel.


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Posted: 07/12/19 11:25pm Link  |  Quote  |  Print  |  Notify Moderator

We removed ours, all chipping stopped.


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Posted: 07/26/19 08:37am Link  |  Quote  |  Print  |  Notify Moderator

I removed ours and it seemed the toad was getting more rock chips. I cut some off the bottom so it couldn't hit the road and it seems much better than it did originally with it on or with it off.


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Posted: 07/26/19 11:23am Link  |  Quote  |  Print  |  Notify Moderator

The mud flaps behind the wheels should be enough. The big flap is just trapping hot air kicking up rocks etc. Looks nice till you drag it through dip and the trailer hitch puts a big dent or cut in it.


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Posted: 07/26/19 09:10pm Link  |  Quote  |  Print  |  Notify Moderator

After having experienced a 4x4 being thrown by the wheels on our last MH, I personally can tell you that the hanging guard does its job. If it wasn't there the 4x4 would have went through the radiator and out the back and into the toad. Instead it was forced out the side from under the rig without damaging anything.

It bent the **** out of the flap. The flap was still there when we sold it. I have never had any rock damage on from the flap throwing up rocks on the last 4 toads we've owned.

The flap on our last MH and this one were about 2" from the road when aired up.

I will never remove ours.

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Posted: 07/26/19 09:56pm Link  |  Quote  |  Print  |  Notify Moderator

If you read the installation recommendations for the Ultra-Guard, you'll see they recommend 4-1/2 to 5 inches of clearance between the bottom of the flap and the ground.

If it drags, it will certainly pick up rocks as you drive along.

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