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libra suspension bushes 
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Joined: Fri Jul 24, 2020 10:23 am
Posts: 19
Location: Essex
Post libra suspension bushes
how do peeps, what bushings do you guys with a libra use for the suspension A arms?


Tue Oct 06, 2020 12:28 pm
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Joined: Thu Jul 21, 2011 2:13 pm
Posts: 29
Location: Surrey/Hants border
GTM: Libra
Post Re: libra suspension bushes
Hi, they were supplied by Superflex. If you search on here for Superflex then some history will show. GTMOC Secretary Bob Snooks did have some stock.


Wed Oct 07, 2020 8:06 am
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Joined: Fri Jul 24, 2020 10:23 am
Posts: 19
Location: Essex
Post Re: libra suspension bushes
I was hoping for dimensions so I can spin some up out of nylon.


Thu Oct 08, 2020 7:48 pm
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Joined: Sat Sep 29, 2007 3:45 pm
Posts: 909
Location: SL2 4JW
GTM: Libra
Post Re: libra suspension bushes
Dimensions as supplied by Supaflex, GTM special top hat bush. The ‘club’ (and myself) accepts no responsibility.

22.3mm OD
13.5mm ID
15.7mm Overall length (Inc. flange).
3.7mm Flange (by 27.6mm od).


kaighn80 wrote:
so I can spin some up out of nylon


Do so at your own risk.

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Fri Oct 09, 2020 10:38 am
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Joined: Wed Aug 11, 2010 9:27 am
Posts: 514
Location: Sheffield
GTM: Libra
Post Re: libra suspension bushes
Nylon won't be very good as it's too hard and will absorb water, potentially causing it to swell.

The PU bushes have a little 'give' for a less harsh ride and less transmission of jolts to the body tub..

If you do want solid hard bushes for like, track only use, then acetal would be a better choice, lower water absorption and lower friction.

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2000 GTM Libra 1.8VVC 145BHP


Last edited by sidewinder on Fri Oct 09, 2020 2:04 pm, edited 1 time in total.

Fri Oct 09, 2020 12:25 pm
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Joined: Fri Jul 24, 2020 10:23 am
Posts: 19
Location: Essex
Post Re: libra suspension bushes
thanks for the dimensions, the point of nylon bushes is to create a hinge, the squeak you get with poly bushes is due to stiction and friction, nylon doesn't produce this because your not actually bolting up on the nylon, you clamp the crush tube in the nylon which is free to rotate inside the nylon, this technique is used a lot on Caterham's and the like as an upgrade for the poly bushes, especially on the wider vehicles.

as an aside, not sure i could try and blame the club or anyone else if I'm making these myself AND something goes wrong, and I'm sure i wouldn't try either!


Fri Oct 09, 2020 12:52 pm
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Joined: Wed Aug 11, 2010 9:27 am
Posts: 514
Location: Sheffield
GTM: Libra
Post Re: libra suspension bushes
The point of PU bushes is to create a hinge also, properly installed PU bushes you don't clamp up on the PU either you clamp the stainless steel tube and the bush rotates on that. Apply grease on the surface of the tube/inside the bush and the top surface of the bush's flange - latter has to rotate against the inside face of the brackets so is necessary to be lubed.

I get no noise from my PU bushes cos they are kept greased with moly grease as detailed above.

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Fri Oct 09, 2020 2:04 pm
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Joined: Fri Jul 24, 2020 10:23 am
Posts: 19
Location: Essex
Post Re: libra suspension bushes
cool, i wont have to grease.


Fri Oct 09, 2020 2:38 pm
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