Will a solid T/C rod and polyurethane control arm bushing cause suspension bind?

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Surewin
Posts: 48
Joined: Wed Aug 11, 2004 7:40 am
Car: 90 240SX

Post

If I replace my T/C rods with spherical joints and the lower control arm bushings with polyurethane will this cause the suspension to bind when compressed?

Reasoning: When the suspension compresses the T/C rod will pull on the control arm towards the front of the car (because the T/C rod radius is becoming smaller when viewed from the top.). This mandates that the front lower control arm must slightly angle forward pivoting about the rubber bushing. If the bushing were replaced with polyurethane, which will only freely rotate about one axis this motion would cause the suspension to bind. As it would have to compress the very stiff bushing or rotate about more then one axis as the suspension moves.

BTW: S13
Modified by Surewin at 10:52 AM 8/14/2006


180fan
Posts: 7799
Joined: Sat Dec 14, 2002 12:16 pm
Car: 89 fastback

Post

if it's lubed, no. I've had poly bushings in my tension rods for way long and I've yet to have any binding issues.


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