Hitch rattle

Submitted: Monday, Sep 13, 2021 at 14:14
ThreadID: 142558 Views:1105 Replies:11 FollowUps:6
Hi all. What do youse all use to stop your hitch rattle? Just the locking bolt under the hitch? I have used a secure-a-hitch for a while but am considering a different height hitch. To complicate things I also use a Talon Bilock hitch pin as one line of security. I have tried a mr hitches anti rattle licking hitch pin but it’s not long enough to fit through the Prado’s hitch receiver.
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Reply By: Member - LeighW - Monday, Sep 13, 2021 at 14:47

Monday, Sep 13, 2021 at 14:47
I find mine rattles a little till we hit the dirt, then the dust fills the gaps and stops it rattling:)

haven't tried it but some thin heat shrink like is used for battery packs might take up the play.

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Reply By: Rod N - Monday, Sep 13, 2021 at 17:13

Monday, Sep 13, 2021 at 17:13
The locking bolt under the hitch should only be used when unloaded to stop the rattle. If you use it loaded the bolt would be 'mushroomed' by the 'riveting action' making it impossible to remove.
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Reply By: Member - Suitcase (QLD) - Monday, Sep 13, 2021 at 17:17

Monday, Sep 13, 2021 at 17:17
Obviously I meant a "mr hitches anti rattle locking hitch pin" - sorry
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Reply By: Mikee5 - Monday, Sep 13, 2021 at 17:35

Monday, Sep 13, 2021 at 17:35
Mine stops rattling when it gets full of dust.
AnswerID: 637906

Reply By: RMD - Monday, Sep 13, 2021 at 17:40

Monday, Sep 13, 2021 at 17:40
Suitcase,
Have you worked out if the rattle is from the towbar hole and tongue hole are too, big allowing rattle, OR is it the tongue s slapping sideways a little causing rattle OR, it is the front end of the tongue in the receiver flapping up and down near it's inner edge, rotating on the pin, which is causing the rattle? I cannot see how a pin design of any type will stop any of those sources.

The pin and receiver horizontal holes should be a close fit to prevent and rattle but it will allow rotation of the tongue to slop the inner edge up and down. If the holes are flogged bigger then repair may be the answer or drilling and using a large dia pin. Near the front edge, forward most edge, of the receiver at the bottom, I drilled a hole and tapped it 8mm. Most times the tongue is up at the front edge and so the bolt screwed in there simply holds it up all the time, = No noise. Side slop can also make a noise but the angle bolt idea with welded nut should stop that.
AnswerID: 637907

Reply By: Michael ( Moss Vale NSW) - Monday, Sep 13, 2021 at 19:17

Monday, Sep 13, 2021 at 19:17
I bought a rubber stretchy hold down, about 500mm long and placed across the top of the square tube of the tongue and pulled it down either side and hooked into the back of the tube. Stopped the rattle instantly. They come with a stainless hook either end. Bunnings about $6.00.
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AnswerID: 637909

Reply By: Member - Keith P (NSW) - Monday, Sep 13, 2021 at 19:42

Monday, Sep 13, 2021 at 19:42
I dont use ball hitches any more ....but in a past life with both caravan and box trailer...a plastic shopping bag folded up to 4 thicknesses and put onto ball before hooking up worked pretty well...plus it had a by use of being a bit of a lubricant as well
Maybe worth a try ....just bung it on and make sure ball adjustment is good.....then trim around it leaving about 4 inches of excess all around the ball.
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Reply By: Member -Pinko (NSW) - Monday, Sep 13, 2021 at 19:55

Monday, Sep 13, 2021 at 19:55
Hi Suitcase
I have had a rattling hitch. The tongue is held in place by a hard metal pin, the receiver (towbar) fabricated from 10mm steel and the tongue is made from RHS of a lighter gauge and it fits slightly loose in the towbar.
As time goes on the the hole in the RHS get enlarged from pounding on the pin and results in a rattle.
This has fixed mine.
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Follow Up By: Member - Suitcase (QLD) - Monday, Sep 13, 2021 at 19:59

Monday, Sep 13, 2021 at 19:59
I see you have a Bilock hitch pin too.
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Follow Up By: RMD - Monday, Sep 13, 2021 at 20:45

Monday, Sep 13, 2021 at 20:45
Pinko.
I agree that clamp will clamp the movement BUT the clamp is acting against the natural forces of the towball weight. It may be better upside down with the U bolt against the upper side of tongue and the bar under the receiver. That way it holds it as it would normally sit when free resting.
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Follow Up By: Keir & Marg - Tuesday, Sep 14, 2021 at 10:10

Tuesday, Sep 14, 2021 at 10:10
I use one of these U-bolts, and it stops all the rattle. But mine has the U-bolt on top and the nuts underneath so is pulling the ball end of the hitch downwards, rather than upwards, as in the previous poster's picture. They are available at SCA, Autobarn, Repco, BCF etc and most caravan spares shops.
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Reply By: Member - McLaren3030 - Tuesday, Sep 14, 2021 at 11:10

Tuesday, Sep 14, 2021 at 11:10
Hi Suitcase,

As RMD stated, unless you know exactly where the rattle is coming from, it is hard to suggest what might stop or reduce the rattle. From what I have read, the most common cause of “tow bar” rattle is from the tongue being slightly smaller than the receiver. Generally, once the tongue is “loaded” up with the hitch on the van/trailer, it tends to disappear. If this does not solve the issue, particularly on rough roads, I have seen a lot of people using a shim of some kind, quite often fashioned from an aluminium drink can or similar to stop the rattle. When not towing, you could just remove the tongue.

If the rattle is from the socket on the trailer hitch being loose on the ball, have you got the correct size hitch for the ball, or conversely the wrong size ball for the hitch?

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Reply By: Member - Suitcase (QLD) - Tuesday, Sep 14, 2021 at 11:18

Tuesday, Sep 14, 2021 at 11:18
The rattle of which I speak would be the same as that experienced (and solved) by Pinko's clamp. Hayman Reese and Mr Hitches sell a hitch pin that is designed to eliminate this "movement". Those that would remember the Secure-a-hitch (same mob that make Rock Tamers - but not made anymore) - it did the same thing. It probably is the movement of the tongue up and down inside the receiver - pivoting on the pin.
Just wondered what people did - seems "dust" is the most popular packing material used.
I might stick to my old hitch.
cheers
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AnswerID: 637921

Reply By: wbsl - Tuesday, Sep 14, 2021 at 17:10

Tuesday, Sep 14, 2021 at 17:10
I used a Hayman Reese 55038 - Silent Hitch Pin, on my Dmax.

Had no problems with the length and it works well to stop the rattle. May differ on the Prado.

It also feels like it has improved stability when towing my caravan (seat of the pants measurement)
AnswerID: 637926

Follow Up By: Member - Suitcase (QLD) - Tuesday, Sep 14, 2021 at 17:13

Tuesday, Sep 14, 2021 at 17:13
That's what I looked into - it has a usable 70mm on the shank of the pin and my Prado needs about 80mm damn it. Mr hitches make the same thing - same size. I thought the concept was very good.
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Follow Up By: RMD - Tuesday, Sep 14, 2021 at 19:23

Tuesday, Sep 14, 2021 at 19:23
Wbsl
You may need your Bum Dyno recalibrated if a hitch pin can alter handling!
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FollowupID: 916102

Follow Up By: axle - Wednesday, Sep 15, 2021 at 11:54

Wednesday, Sep 15, 2021 at 11:54
Lol !..RMD .......Strange things happen at times.


Axle.
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FollowupID: 916109

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