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8111colin

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Reply with quote  #1 
Hi all
I replaced the shockers with no 5 set of shockers , second set of tough dogs.
I have just returned from a 5000 km trip and have no bushes left on the bottom on one side and top and bottom are mashed out on the other .
These were brand new before I left .
Anyone else gone through so many shockers and bushes ?
I have just bought neoprene bushes today .

Only problem for the trip .
That really matters anyway .
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William the Conqueror

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Reply with quote  #2 
That seems a bit extreme Colin.

Have you spoken with Tough Dog directly - they are usually pretty good with their product and keeping the customer satisfied.

I would also have a look at load weights, load balance (where the weight is in the trailer) and springs (have the settled or gone soft unevenly).

What type of driving were you doing? If lots of corrigations - did you lower tyre pressures and stop regularly to allow the shocks to cool down?.

Another thing to look at is the vehicle setup. Does it compliment the trailer? Is it level across the vehicle and the trailer?

Just some food for thought.

Cheers

Anthony

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SVX17

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Reply with quote  #3 
I would be tempted to take it suspension expert. It sounds to me like there us an under lying issue that hasn't been identified.
My 440 is 31/2 years old now and it's done lots of off road work, shock bushes are still fine.
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8111colin

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Reply with quote  #4 
There is no underlying issues with the suspension now , I have just rebuilt it since it all fell apart and wore out the control arm shafts , it's better than it was from the factory . It's just the bushes that can't hack the pounding , the shockers are working well .
It's a simple set up .
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SVX17

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Reply with quote  #5 
All good, I didn't know you previously had problems with the control arm shafts.
Glad it's sorted.
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8111colin

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Reply with quote  #6 
Yep both sides worn through the threads and would have broken , there must be more like it , you should check , or everyone should check , just another weak point to go with all of the others
I saw a 490 in Borroloola with a broken shaft on a tow truck .
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SVX17

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Reply with quote  #7 
Interesting, I'm in the middle of some maintenance on the 440 at the moment. I'll be putting them on the list.
Cheers
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8111colin

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Reply with quote  #8 
Let me know if you need help.
I have posted pictures of my shafts and the new high tensile ones I had made inc bushes .
My wheel alignment is pretty good now , I also replaced stub axle bold as the original ones broke , they are the 4 internal hex or Allen key bolts that hold the stub axle to the swing arm .
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Spada

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Reply with quote  #9 
Yep, I had problems flogging out shock bushes.......

Eventually I discoverd that the shocks were not mounted with the mounts verticle of each other, the bottom mount was about 30mm outside the line of the top mount. That means that as the shock compresses, it is trying to bend sideways on the bush and all of the load was going onto one corner of the bush.

Since I've moved the mottom mounts to be inline with the top mounts, I havnt had any more suspension problems.
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8111colin

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Reply with quote  #10 
Hi Spada

I have just measured the brackets and not to my supprise one is spot on and the other side is 12mm out of alignment , so consistant with the way the rest of the trailer measures up out of whack all together .
Colin
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Bobkaz

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Reply with quote  #11 
After doing the Cape, we have also had to replace the rubbers on our shocks with neoprene ones. Word from the local dealers in atherton is they are getting a lot of people having the same problem with tough dog shocks. Also had to replace the bolts as they were cracked and bent.
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8111colin

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Reply with quote  #12 
I have replaced the bolts twice now and going to do it again with high tensile ones as the bolts have worn grooves and i also found that the holes in the brackets are egg shaped or heading that way , so i'm welding new plates and re drilling the holes .

none of this is a surprise  at all .


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Drover

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Reply with quote  #13 
Yes, this has happened on my 440. Has had a fair amount of rough- 2 x Gibb, Connie Sue etc. Just replaced with neoprene. No serious testing yet. Big trips planned for 2017. When I look at the old bushes they are small and do not get clamped between the side mount plates and so are forced out of the sides of their mount. It is also possible the shocks have too much damping and put too great a load on the bushes???
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8111colin

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Reply with quote  #14 
i have replaced the bushes with neoprene and are bulging out of the sides already , i am over fixing this sort of thing , i can live with replacing bushes at the end of every trip .

i have rebuilt this trailer in every aspect almost so here is where i stop .  ( i hope )

Colin




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Drover

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Reply with quote  #15 
Hi all, the bushes I have used are Nolathane #43002 . They fit snug between the mounting bracket faces so should not bulge out - yet to be extensively tested. I am also going to bend the brackets apart a little and put a washer in as the shock spacer is shorter than the gap in the mount and has been bent in by tightening the bolt. Also from a previous post of mine, the mounting bolts should be 1/2 inch, not 12mm as supplied. The 12mm bolt can allow more movement at the spacer if not very tight and wear it elongated. Hope this helps.
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