Stone Flaps

Submitted: Sunday, May 06, 2018 at 18:46
ThreadID: 136657 Views:1052 Replies:7 FollowUps:3
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I have made some Flaps to fit a Toyota Prado. I have heard that a full width mud flap can cause problems with the transmission due to lack of adequate air flow ???? Does anyone know about this ?
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Reply By: Gronk - Sunday, May 06, 2018 at 20:01

Sunday, May 06, 2018 at 20:01
Largely pure myth.When a 4wd is travelling at 80 k/ph or more, whether the air flows straight towards the rear or deflects and goes sideways will make no difference to airflow past the diff.

If you are towing, forget the myth and fit a stone stomper and be done with it. 100% better than any flap..
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Reply By: Motherhen - Sunday, May 06, 2018 at 21:46

Sunday, May 06, 2018 at 21:46
I beg to differ with the previous reply about airflow, but good advice re stone stomper. We do not have one, but many reports put them way in front of other methods. Just need to have caravan or trailer well protected underneath as stones can be taken further back.

You will also create drag with a full one piece mud flap. Make two single flaps. Nothing gained by having it full way across either. Two version here


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Reply By: Sand Man (SA) - Monday, May 07, 2018 at 07:34

Monday, May 07, 2018 at 07:34
Had a set of Rock Tamers and they scared the crap out of me on a trip up the Birdsville Track.
Didn't matter how I adjusted the angles, the stones were observed in the side mirrors being ejected backwards and sideways, potentially into the path of other traffic. Obviously I sold them.

Now own and use a Stone Stomper and have been on a myriad of trips without any problems at all. Chalk and cheese!
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Follow Up By: Member - Stephen L (Clare SA) - Monday, May 07, 2018 at 07:41

Monday, May 07, 2018 at 07:41
Hi Sand Man

Another vote for the fantastic South Australian made Stone Stompers.


Cheers


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Reply By: Member - Racey - Monday, May 07, 2018 at 08:31

Monday, May 07, 2018 at 08:31
Hi Sand Man, I totally agree with your comments re Rock Tamers. Sold mine and bought Rock Tamers.

Cheers
Jon
AnswerID: 618717

Follow Up By: Nomadic Navara - Monday, May 07, 2018 at 08:44

Monday, May 07, 2018 at 08:44
"Sold mine and bought Rock Tamers."

Did you really mean that or did you purchase Stone Stompers?
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Follow Up By: Member - Racey - Monday, May 07, 2018 at 08:54

Monday, May 07, 2018 at 08:54
Hi Peter, Not concentrating :-) . Yes bought Stone Stompers.

Cheers

Jon
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Reply By: Malcom M - Monday, May 07, 2018 at 12:41

Monday, May 07, 2018 at 12:41
Used to be some info on this on the PradoPoint forums.

Reality info from owners who suffered overheating problems.
AnswerID: 618723

Reply By: HKB Electronics - Monday, May 07, 2018 at 12:58

Monday, May 07, 2018 at 12:58
I know someone with a Prado 120 who used a full width mud flap for years without problems, did the Canning Anne Beadell etc with it fitted and no issues.

The problem I see with any mud flaps required to stop stones is they need to be very close to the ground, this can result in the mud flaps themselves flicking up stones and actually making things worse.

Personally I use a Stone Stomper on my Prado and find it excellent, the only down side I have had with it was on the last trip with inclement weather resulting in a mud bath and due to the conditions not wanting to stop to remove the stone stomper so ended up sacrificing the mating under the circumstances.

Still can't speak highly enough of Kristian at stone stomper, he went above and beyond the call of duty to get a replacement mat shipped to me at Darwin and at a discounted price to boot.
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Reply By: Deejay - Wednesday, May 09, 2018 at 20:14

Wednesday, May 09, 2018 at 20:14
I made my own. Very similar to Mother Hen's but a bit longer. I also angled mine in an attempt to guide the stones down AND outwards. There is still about a 400mm gap in the middle for air to pass through.
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