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SVT Shelby GT500
Poly bushing upper ever crack for anyone?
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<blockquote data-quote="RedVenom48" data-source="post: 15461304" data-attributes="member: 166576"><p>I would not run poly bushings on that car. I had a little over 500whp with BMR upper control arm and mount, and lower BMR poly control arms.</p><p></p><p>At a barely prepped track event, i blew out the front left low poly bushing at the top end of the track... scary shit man. At an actual track, i blew out the upper poly bushing on launch. It was enough blow out of the bushing that my new 1 piece driveshaft from DSS made contact with my body floor. Luckily, it was light contact and didnt destroy my driveshaft. Had i had my BMR rear brace and driveshaft loop actually installed, my driveshaft would have been junk for sure.</p><p></p><p>BMR was great and sent my some poly rubber hybrid bushings for the lowers. So far those are the cats meow, and only needs periodic lubing with some 3m silicone paste.</p><p></p><p>The upper bushing though... thats still a poly only bushing. As such, ive not installed it back in my car even with the replacement poly bushings and have been running the OEM upper mount and arm. To my knowlege, there is no rubber poly hybrid under development for the upper which is a shame. For now, the mount and arm is sitting in my toolbox.</p><p></p><p>Ill more than likely be switching to an adjustable upper spherical unit from Hotchkiss due to it being half the price of the BMR. Moneys kinda tight right now haha. I CANNOT risk blowing out a poly bushing and trashing my driveshaft.</p><p></p><p>If youre reading this BMR, make that upper rubber/poly hybrid bushing for your upper arm. id like to have my upper arm and mount usable again.</p></blockquote><p></p>
[QUOTE="RedVenom48, post: 15461304, member: 166576"] I would not run poly bushings on that car. I had a little over 500whp with BMR upper control arm and mount, and lower BMR poly control arms. At a barely prepped track event, i blew out the front left low poly bushing at the top end of the track... scary shit man. At an actual track, i blew out the upper poly bushing on launch. It was enough blow out of the bushing that my new 1 piece driveshaft from DSS made contact with my body floor. Luckily, it was light contact and didnt destroy my driveshaft. Had i had my BMR rear brace and driveshaft loop actually installed, my driveshaft would have been junk for sure. BMR was great and sent my some poly rubber hybrid bushings for the lowers. So far those are the cats meow, and only needs periodic lubing with some 3m silicone paste. The upper bushing though... thats still a poly only bushing. As such, ive not installed it back in my car even with the replacement poly bushings and have been running the OEM upper mount and arm. To my knowlege, there is no rubber poly hybrid under development for the upper which is a shame. For now, the mount and arm is sitting in my toolbox. Ill more than likely be switching to an adjustable upper spherical unit from Hotchkiss due to it being half the price of the BMR. Moneys kinda tight right now haha. I CANNOT risk blowing out a poly bushing and trashing my driveshaft. If youre reading this BMR, make that upper rubber/poly hybrid bushing for your upper arm. id like to have my upper arm and mount usable again. [/QUOTE]
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Poly bushing upper ever crack for anyone?
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