Rear Trailing Arm 2 piece Poly bush

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pkrboo
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Rear Trailing Arm 2 piece Poly bush

Post by pkrboo »

getting ready to replace a rear training arm and i'm doing a favourite thing and looking at Bushes.

is there any disadvantage to using the T3/T4 split poly bush over the one piece? pros and cons?

1 piece: https://www.brickwerks.co.uk/t3-parts/t ... rflex.html" onclick="window.open(this.href);return false;

Split 2 piece: https://www.brickwerks.co.uk/t3-parts/t ... inner.html" onclick="window.open(this.href);return false;
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Titus A Duxass
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Re: Rear Trailing Arm 2 piece Poly bush

Post by Titus A Duxass »

I personally don't think that there are any disadvantages. I've fitted them to my camper and can't tell the difference.between that and the Pritsche.

There are some that think that poly bushes on the rear are a bad idea - but I think they forget that they are driving a large van and not a race car.
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T25Convert
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Re: Rear Trailing Arm 2 piece Poly bush

Post by T25Convert »

The one piece one is almost impossible to fit - you have to get the fat end of the bush all the way through the arm.

Two piece one is much easier.

Either will be better than whats in there now! Not aware of any reported issues with the split bushes.
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clift_d
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Rear Trailing Arm 2 piece Poly bush

Post by clift_d »

You really need the correct tool to fit the one piece bushes - doing it without is a complete pain, although it’s not entirely straightforward even with it :-D.

Unfortunately I don’t know whether the one-piece bushes are sufficiently more robust than the split ones to make their fitting worthwhile.
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Dubworth
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Re: Rear Trailing Arm 2 piece Poly bush

Post by Dubworth »

Just looking at this as my next bit of maintenance. Also considering the two piece, did you fit them in the end?
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itchyfeet
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Re: Rear Trailing Arm 2 piece Poly bush

Post by itchyfeet »

You have to wonder if you could not just push the sleeve out of the one piece then saw the poly bush in half :D

But same price so why fit a one piece?
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pkrboo
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Re: Rear Trailing Arm 2 piece Poly bush

Post by pkrboo »

Dubworth wrote:Just looking at this as my next bit of maintenance. Also considering the two piece, did you fit them in the end?
no. not done them yet, i think i will use the 2 piece though, i don see a negative at the moment
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bobajob67
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Re: Rear Trailing Arm 2 piece Poly bush

Post by bobajob67 »

I've fitted split polybushes with no issues. Cheaper than powerflex. I've only done a few hundred miles on them but I can say the ride is good and they were easy to fit.

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itchyfeet
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Re: Rear Trailing Arm 2 piece Poly bush

Post by itchyfeet »

bobajob67 wrote:I've fitted split polybushes with no issues. Cheaper than powerflex

which brand? do you have a link please?
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bobajob67
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Re: Rear Trailing Arm 2 piece Poly bush

Post by bobajob67 »

https://www.polybush.co.uk/shop/vw/tran ... r=2%7C1984" onclick="window.open(this.href);return false;

there you go.....

Just edited this post - Checked the price and looks as though power flex from brickwerks are now cheaper
Last edited by bobajob67 on 28 Sep 2019, 20:26, edited 1 time in total.

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Re: Rear Trailing Arm 2 piece Poly bush

Post by bobajob67 »

Lots of comments on the internet about the pros and cons of polyurethane bushes but very few from people who have actually fitted them especially to T3 / T25s (good to see someone else on this thread who has fitted them). Apparently the steering rack bushes are supposed to make a big improvement but then I suspect standard bushes would be an improvement over knackered originals, so they are next on my list.

My biggest concern with the trailing arm bushes was a harsh ride but this definitely inst the case. Ride is quiet and supple so I'm happy.

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itchyfeet
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Re: Rear Trailing Arm 2 piece Poly bush

Post by itchyfeet »

bobajob67 wrote: I suspect standard bushes would be an improvement over knackered originals, so they are next on my list.

The problem with 'standard bushes' is that the quality is rubbish these days and they don't last, if you fit poly you know you won't have to do it again for a long time.
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937carrera
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Re: Rear Trailing Arm 2 piece Poly bush

Post by 937carrera »

I have installed Powerflex polybushes on both front subframe and rear trailing arms on Saab 9-5s. Easier to do and no adverse NVH consequences in my experience.
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Dubworth
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Re: Rear Trailing Arm 2 piece Poly bush

Post by Dubworth »

Right. Looks like I'll be going with the split bushes then. I'm guessing I'll need 2 x this kit ( https://www.brickwerks.co.uk/t3-parts/t ... inner.html" onclick="window.open(this.href);return false; ), to do both sides, I was going to factor in new trailing arm bolts as well as axle-to-gearbox bolts (guessing the axles will have ot come off to release the arms), as mine are looking a bit worn. Any other things worth replacing whilst this job is underway?
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pkrboo
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Re: Rear Trailing Arm 2 piece Poly bush

Post by pkrboo »

Dubworth wrote:Right. Looks like I'll be going with the split bushes then. I'm guessing I'll need 2 x this kit ( https://www.brickwerks.co.uk/t3-parts/t ... inner.html" onclick="window.open(this.href);return false; ), to do both sides, I was going to factor in new trailing arm bolts as well as axle-to-gearbox bolts (guessing the axles will have ot come off to release the arms), as mine are looking a bit worn. Any other things worth replacing whilst this job is underway?

yes two of that kit, what condition are your rear brake hoses in?
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