Wrong Bolts For Wishbones?

[Richie-Van-GTi 71 2 Cars]

I'm polybushing a gti at the moment on the front wishbones as it seems to destroy them very quickly. However the bolts in there are not shouldered. They are the correct width / length. Could the fact they are not shouldered be contributing to the premature failure as I'm certain from memory the OE bolts are shouldered.

 

[allanallen 528 2 Cars]

As you say they should be shouldered but I very much doubt un-shouldered bolts will have any effect on bush longevity, just s*it bushes I would imagine. Are they oe bushes or aftermarket?

[Ryan 99]

Are you remembering to tighten the bolts up with the weight on the wheels? Tightening them with the wheels in the air is a good way to destroy them.

[Paul_13 212 1 Cars]

On every wishbone kit I've bought from pug recently has had a non shouldered bolt on the front

[farmer 328 1 Cars]

359907 order that kit from pug comes with correct bolts and O.E bushes your problems will be solved

 

Kits £30

[Tom Fenton 1,541]

comes with correct bolts

 

Actually it does not, the smaller M10 supplied is a fully threaded set screw when it should be a bolt with a shank.

[farmer 328 1 Cars]

Actually it does not, the smaller M10 supplied is a fully threaded set screw when it should be a bolt with a shank.

 

stand corrected

[farmer 328 1 Cars]

Will it make much of a difference then Tom fully threaded rather than shanked?

Edited January 14, 2013 by farmer

[Tom Fenton 1,541]

Common sense would say not, but my experience is that 205's are VERY sensitive indeed to any play in wishbone bushes/pins and so it is better to use the correct shanked bolt.

[farmer 328 1 Cars]

Well I put the threaded bolt in so far no problems touch wood

[Richie-Van-GTi 71 2 Cars]

Yes they are always tightened with the weight on the wheels. The wishbones were OE ones complete with bushes and have done very little mileage. Sub 3k. But have been subjected to a few torturous hours on rollers after a few mapping sessions and 2 engine changes.