Vehicle & Technical > Series Land Rovers

Polybush

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Welshbreed:
you can get soft and hard polybrushes, one set are red the other set is blue. both by ploybrush. dont go for fake polybrushes.

S188:
I don't see how polybushes can help a leafsprung suspension setup, infact it should make it worse...

On a standard bush the outer and inner sleves are atached to the spring and chassis respectively.  In between is some softish rubber that alows a limited degree of rotation about its axis, which is usead as the spring changes shape - fine!  A polybush locates a simular way but I can't see it offering so much rotation and thus make the spring less flexable.

Another thing leaf sprung suspension does when it articulates is twist slightly, when your on an axle twister the axle isn't leval with the chassis, yet the spring under the axle is parallel with it, as is the inner parts of the bushes parralel with the chassis.  some of that twist is achived in the spring (most of it probubly) and some can come from squashing the rubber bushes a bit.  A polybush won't alow that at all so if anything will reduice articulation.  Improving this twist thing has a drimatic affect on axle articulation as is proved by things like gone2far kits.

Thats my persional view, to me it makes sence, what do others think? Am I just talking crap because I've never seen the need to spend money on them?  I'm sure they can help improve handleing on a race machine with sufisticated suspension but I think the leaf sprung landy kits are made because they can (ofterall everything else has them avalable too) rather than its a really brileant idea?

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