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SVTPerformance's Chain of Restaurants
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Suspension/Brakes
Cobra Mustang IRS Delrin/UHMW/Alum bushing kit w/adj. sway bar links & bumpsteer kit
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<blockquote data-quote="ac427cobra" data-source="post: 12930314" data-attributes="member: 6247"><p>Your plan to fix the differential mounts is a good one but I don't see a mention of a front diff mount bushing? What are you planning there? </p><p></p><p>Once you have the differential mounts fixed the differential will be stabilized and protected, but you've done nothing for raising the efficiency of the IRS. Do you know that uneasy feeling of not knowing what the back end of your car is going to do when you launch it hard or push it hard in a corner? That is caused by control arm deflection from control arms mounted in soft rubber bushings, poor bumpsteer curves and a weak toe link. </p><p></p><p>The biggest problem with the IRS is, it is half as efficient as the front suspension because it has twice as many control arms as the front suspension. And to make matters even worse, the rear suspension is also expected to supply propulsion for the vehicle. All of these control arms are mounted in rubber bushings from the factory and these rubber bushings are allowing all FOUR of your IRS control arms to deflect to where ever they desire. Unless you replace those control arm bushings with Delrin, you will continue to have control arm deflection. That is problem #1. </p><p></p><p>Problem #2 is poor bumpsteer curves with the weak OEM toe link assembly. So you have weakness and a poor bumpsteer curve to go with it. These need to be upgraded as well. </p><p></p><p>Then and only then will you have a rear suspension that does not make you uncomfortable when you drive it hard. </p><p></p><p>I hope that helps.</p><p></p><p>:thumbsup::coolman::beer:</p></blockquote><p></p>
[QUOTE="ac427cobra, post: 12930314, member: 6247"] Your plan to fix the differential mounts is a good one but I don't see a mention of a front diff mount bushing? What are you planning there? Once you have the differential mounts fixed the differential will be stabilized and protected, but you've done nothing for raising the efficiency of the IRS. Do you know that uneasy feeling of not knowing what the back end of your car is going to do when you launch it hard or push it hard in a corner? That is caused by control arm deflection from control arms mounted in soft rubber bushings, poor bumpsteer curves and a weak toe link. The biggest problem with the IRS is, it is half as efficient as the front suspension because it has twice as many control arms as the front suspension. And to make matters even worse, the rear suspension is also expected to supply propulsion for the vehicle. All of these control arms are mounted in rubber bushings from the factory and these rubber bushings are allowing all FOUR of your IRS control arms to deflect to where ever they desire. Unless you replace those control arm bushings with Delrin, you will continue to have control arm deflection. That is problem #1. Problem #2 is poor bumpsteer curves with the weak OEM toe link assembly. So you have weakness and a poor bumpsteer curve to go with it. These need to be upgraded as well. Then and only then will you have a rear suspension that does not make you uncomfortable when you drive it hard. I hope that helps. :thumbsup::coolman::beer: [/QUOTE]
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Cobra Mustang IRS Delrin/UHMW/Alum bushing kit w/adj. sway bar links & bumpsteer kit
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