UMI Brackets and Rear Sway Bar [Archive] - Chevelle Tech

: UMI Brackets and Rear Sway Bar


Lou59
Sep 25th, 07, 9:33 AM
Recently installed some UMI performance Rear End Lower Control Arm Relocation Brackets on a 69 SS eliminating the severe wheel hop. The installed control Arms I have on the car are the Boxed so now the Rear Sway Bar hangs somewhat lower than it did originally. Was noticing on the UMI performance page the Lower Control Arms displayed there have the holes for the Sway Bar offset..looks like it would bring the Bar back to level. Anyone see a problem with the way it is now with the rear sway abot 2" under the differential and not level with the control Arms?
All inputs welcome
Lou

72 468/400chevelle
Sep 25th, 07, 12:01 PM
Lou, I think UMI would tell you that there's no problem with it being lower. However, that's the very reason I decided to leave the lowers alone and get the Edelbrock no-hops which in effect do the same thing by relocating the upper mounts. But I did have to get the adjustable upper arms to reposition my pinion. Performance wise, I don't think it matters. I just was not crazy about the appearance of it being lower. And didn't think I would be able to jack my car from the carrier any longer. If you look at the pictures on UMI's site, even with the offset mounting holes on their lower arms, the bar still appears to be noticably lower. Just my 2 cents.

Danny

Lou59
Sep 25th, 07, 12:12 PM
Thanks Danny,
Was kinda thinking the same thing with regard to the position and the sway bar function. I'm am also considering getting the adustable uppers for Pinion adjustment as well. How can you tell the difference between vibration from Drive-shaft/pinion angle or wheel/tire at any given speed?

72 468/400chevelle
Sep 25th, 07, 12:36 PM
We'll probably need some help here, but IMO if PA is off bad enough to cause a vibration, I think it would be noticable with the naked eye especially if the vibration is at cruise and not under a severe load. Those relocators that you installed are not supposed to alter the pinion angle though. I don't think that change is causing your problem. Maybe someone else can offer some advice.

Danny

Lou59
Sep 25th, 07, 12:57 PM
Think maybe I should rule some things out first...tires first.
Thanks