Trailer Stone Guards

Submitted: Wednesday, Mar 28, 2007 at 09:33
ThreadID: 43716 Views:8684 Replies:10 FollowUps:4
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Doing an google and forum search I have seen all sorts of complex setups to stop stones bouncing off the trailer and chipping paint or smashing rear windows. I was wondering if simply covering the the front of the trailer with some soft rubber such as bedding roll or foam would work as well. Simply gluing or bolting it on to the front of the trailer, someone must have tried this before?

Thanks in Advance

Snowy
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Reply By: Willem - Wednesday, Mar 28, 2007 at 09:49

Wednesday, Mar 28, 2007 at 09:49
I have some clear plastic sheeting which I have glued to the front of the trailer. Use same sheeting velcroed on to rear windows. It works.

Cheers
AnswerID: 230188

Reply By: Sand Man (SA) - Wednesday, Mar 28, 2007 at 10:05

Wednesday, Mar 28, 2007 at 10:05
Snowey,

In my experience it would make very little difference.

The idea of a well designed Stone guard is not only the impact absorption quality of the mesh material but also the angle of the whole assembly which directs stones downward. At least that's the theory.

But, if the stone hits the steel frame of the guard, it can still bounce upward and forward, as happened in my case once.

A Stone guard mounted on the A-frame of a trailer, etc., primarily protects what is behind it, so it is good to give protection to the front of the van or trailer.

A Stone Guard mounted horizontally, underneath the A-frame, between the towing vehicle and the object being towed is good when it is dry, but add a bit of outback mud to the equation and you can kiss the "trampoline" logic goodbye. (Tried that too)

If you wish to protect the rear window glass of your vehicle, there is only one sure way of doing that and that is by covering it with some sort of protective cover, anything from beer cartons (cheap, emergency use) to a "Screen Saver" (the best).

I use both a Stone Guard mounted on the A-frame of the Camper and an Obies Outback Rear Screen Saver over the windows. Haven't experienced any noticeable damage to the rear paintwork so far. At times I add a full length "mud flap" mounted across and behind the rear wheels of the Jack. Maybe I'm just a little "paranoid" because I had to complete the majority of a three week trip to the "Corner Country" with beer cartons taped both inside and outside across the bleep tered window of the Jack to hold the glass in place. Not an experience I wish to repeat.
Bill


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AnswerID: 230190

Follow Up By: greydemon - Wednesday, Mar 28, 2007 at 10:12

Wednesday, Mar 28, 2007 at 10:12
Thanks Sandman, I was intending to install a horizontal type as it appeared to give the best all round protection to the towing vehicle and the trailer. I had not given any thought to what would happen on muddy roads, or even during stream crossings. Back to the drawing board! I still favour the horizontal type but might need a 'Plan B' if I ever venture out in muddy conditions ( a rare event).

So what happens exactly in the mud? Does the flyscreen/shadecloth just get totally clogged and sag down to drag along the road? (I was intending to use bungees for attachment so I can see that this could happen if it got heavy.)
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FollowupID: 490996

Follow Up By: Shaker - Wednesday, Mar 28, 2007 at 16:43

Wednesday, Mar 28, 2007 at 16:43
I wouldn't think there would be many stones flying around in the mud.
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Follow Up By: Sand Man (SA) - Wednesday, Mar 28, 2007 at 17:25

Wednesday, Mar 28, 2007 at 17:25
greydemon,

Yes, you got it in one mate. I was using a "trapeze" on that fateful trip. We had stopped overnight at Mungerannie on the Birdsville Track and there was some rain overnight. On awakening the follwing morning, we were advised by Johnno (the Publican) that more rain was coming and to leave post haste if we were going to Birdsville. So off we trekked. after a few kilometers we came across a section of mud and within no time at all, the trampoline was "flat" on the ground. Being secured at the back and sides by shock cord, the weight of the mud just dragged it downwards, so it was removed. The next 50 kms of track was 15 kph zigzag travel, bouncing out of the left hand kerb back on to the crown of the "road" and if I wasn't concentrating on the driving, would have dirtied my jocks.

After this little experience the track was dry and we could cruise at normal speed again. Of course, there was no point in stopping and putting the trampoline on again because it was one solid sheet of mud coated, heavily weighted "groundsheet".

About 100 kms or so short of Birdsville, a little piece of stone, smaller than my brides wedding ring diamond, (I couldn't afford a very big stone when we got married) embedded itself in the lower left hand section of the big window and things were looking very "opaque" indeed through the rear vision window.

That's all it took. $1500 worth of glass (if the Insurance hadn't eventually covered it) but we still had to wear the inconvenience for the rest of our holiday in the bush.

Shaker,

As above, the stones came soon after the mud, on the same road. (track)
Bill


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FollowupID: 491102

Reply By: Member - Barry M (NSW) - Wednesday, Mar 28, 2007 at 10:12

Wednesday, Mar 28, 2007 at 10:12
I have just fitted a self designed guard made from 40mm pvc, shadecloth ,doubled,
sewn with fishing line. As you can see it was cheap but is untried at this point.
Leaving on trip Saturday. The design is flat & covers the area from the storage box
to the bumper with triangular cut outs on corners to allow turning. Further cutouts
allow for vertical spare wheel carrier & jockey wheel.
It looks like it might work but will carry bubble wrap & cardboard & tape to use
on rear windows if thought necessary. I will post my thoughts on the effectiveness
when we return. Using energy absorbing material on trailer front should be
useful also....oldbaz.
AnswerID: 230193

Reply By: Tony - Wednesday, Mar 28, 2007 at 11:04

Wednesday, Mar 28, 2007 at 11:04
I have a shallow "V" type stone guard angled slightly forward. It is covered with a thick shade cloth firm but not tight.

In a 4 month trip over some rough a stoney roads of weatern Queensland, not even a stone chip on the paint work. I also had clear covers on the rear windows. But after that trip I dont think I will bother with the window covers again.
AnswerID: 230208

Reply By: Member - Battlecat (WA) - Wednesday, Mar 28, 2007 at 12:49

Wednesday, Mar 28, 2007 at 12:49
Hey Snowy,

The Kimberly Kamper web site has one that can be fitted to their trailers - I would look into something like this or if it is a KK then just buy the off the shelf one. Or you could try this guy www.obiesoutback.com.au/obie1.htm.

Cheers
AnswerID: 230226

Reply By: Member - Fourplayfull - Wednesday, Mar 28, 2007 at 12:53

Wednesday, Mar 28, 2007 at 12:53
I use the horizontal shade cloth type held taught with 6mm shock cord - works a treat . When the going is clay mud all the small clods form into one large "doughboy" which can be easily removed - no probs with excessive sagging and still enough flex to do full lock turns .
Cheers John
AnswerID: 230228

Follow Up By: Willem - Wednesday, Mar 28, 2007 at 20:21

Wednesday, Mar 28, 2007 at 20:21
Hiya John

Where ya been???? Working no doubt...lol

Cheers

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FollowupID: 491158

Reply By: Member - Jiarna (NT) - Wednesday, Mar 28, 2007 at 18:34

Wednesday, Mar 28, 2007 at 18:34
I have filled in 2/3 of the A-frame with sheetmetal so that it looks like an upturned boat. Before that I broke 2 rear windows on the Oodnadatta Track, since then (3 years ago) not even a stone chip on the paintwork. Of course the stones now bounce outwards and upwards which might inconvenience traffic coming the opposite direction, but 99.999% of the time that's not a problem. I just slow down for oncoming traffic if I'm on a gravel surface.

Cheers
John
AnswerID: 230293

Reply By: Member - Fourplayfull - Wednesday, Mar 28, 2007 at 22:41

Wednesday, Mar 28, 2007 at 22:41
G,Day Willem
Yeah , working allright - excavating black mud out of our base moorings to float the boats - too many clean people having showers in Adelaide I bet . The level is down a metre so far .
Will try to catch up at Waraweena for a day or so .
Cheers John

AnswerID: 230359

Reply By: MEMBER - Darian (SA) - Thursday, Mar 29, 2007 at 08:00

Thursday, Mar 29, 2007 at 08:00
IMO, the essence of stone guarding is to "deflect" the stones out and away - don't try to "stop" them as such. Has paid off for us.........
AnswerID: 230394

Reply By: Member - Bucky (VIC) - Friday, Mar 30, 2007 at 05:35

Friday, Mar 30, 2007 at 05:35
Shade cloth, set up like on teh Trak Shak camper trailer..
Thats the go ?

Cheers Mate !

Bucky

ps....I can do a foto if required !
AnswerID: 230569

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