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Old 09-24-2012, 03:39 PM
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Powerflex Bushings

Quick question...
I have been experiencing the steering wheel vibration/shuddering many on here have spoke about. I have had my pads resurfaced but it comes back quickly. Noticed some cracks in my lower control arm busshings. I will be changing these out at next brake change. Read good things about PowerFlex.

Question is, I noticed on Pelican Parts they sell sets of lower control arm bushings for steel track rods and a set for alloy track rods. Is that vehicle specific or just user preference?

BMW X5 (2000-06) - Suspension - Page 6
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Old 09-24-2012, 09:38 PM
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I had powerflex bushings in my lower control arms on my E38 - they make the ride a bit more harsh. Sure they might last "forever" but the OEM bushings are designed to absorb shock from the road for a reason. Just a heads up so you're aware that things will be much different.

You can go with 750ilP bushings I think if you want a firmer feel in the control arms. They are designed with heavier rubber to withstand the added weight of the V12 and armor plate the prootection series have.

Cheers!
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Old 09-25-2012, 05:50 AM
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I just put PF thrust arm and sway bar bushes on my 4.8is. With the 20" wheels the ride does feel a bit more stiff but, the handling after a balance and alignment is awesome!
I also got a set of Pelican's lower CAB's (PFF-802) but, they are originally for an E34 (5-series) which has the same design as the E53. However, they are about 1/8" wider than the steel encased rubber bushing. I think with either a small modification or a spacer/ washer to fill the gap it should work. The steel sleeve that goes inside is a perfect fit as far as width, inside the subframe mount. The lower arm is a bit too narrow in comparison for fit to the bushings in the subframe and that's where the problem is.

The PF bushings take a little getting used to and I think over time with a little wear, they'll settle in and give a nice firm ride!
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Old 09-26-2012, 12:00 PM
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Thanks for the info. I'm ok with a firmer ride. I really just need to know whether to order the "alloy track bar" or "steel track bar" version. I can't find info on why they offer 2 different kinds and pelican has not responded to my question.
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