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| 04-21-2013, 12:27 AM | #1 |
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When / If Do You Replace Subframe and Diff Bushings?
I replaced FCAB and RTAB's at 40k. I'm now at 60k and plan to do my motor and trans mounts soon (2nd time for trans mounts).
Has anyone here done their subframe and diff bushings yet? That's one I'm frankly not looking forward to because it looks like a major PITA.
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| 05-08-2013, 01:29 AM | #2 |
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We do them VERY rarely as they are pretty stout parts to begin with. I do caution against using stiffer bushings if you're sensitive to road noise. These bushings will transfer noise directly into the passenger compartment. If you do replace them I'd recommend welding up plates to reinforce not only the frame mounts but also the trailing arm pockets.
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| 05-08-2013, 05:42 AM | #3 |
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what did you replace the FCAB with?
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| 05-08-2013, 09:30 AM | #4 | |
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Going stiffer aftermarket doesn't seem worth it, you either deal with experienced NVH, premature failure, or could potentially cause damage to other parts of the chassis. Stiffer mounts can actually break the brackets or ears they're attached to unlike OEM during impact. The only "stiffer" mount I have is the RTAB's which is oem + Vorshlag limiters. Everything else is oem original or oem M3.
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| 05-08-2013, 11:07 AM | #5 |
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I replaced FCABs with new stockers and RTABs with Rogue black poly units. RE's RTABs made a noticeable difference on track esp on corner exits under load where car does not seem to squirm as much as before.
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| 05-08-2013, 04:33 PM | #6 |
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I like using the Powerflex rear poly bushings since the limiters are built in. For the fronts the Rogue Engineering bushings are best (M's). Since the primary goal for the bushings is pivoting the resultant increase in NVH isn't a bad tradeoff.
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| 05-09-2013, 12:50 AM | #7 | |
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Quote:
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| 06-11-2013, 09:56 PM | #8 |
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Ever figure anything out? Still going this route?
Just curious as I'm doing my usual deployment "can't-drive-so-let-me-build-a-wish-list" wish list. lol
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| 06-11-2013, 10:04 PM | #9 |
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Nope, replaced every bushing except subframe and diff
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