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12-28-2023, 01:17 AM | #1 |
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Percision Works/PLM Mono Ball?
Hi everyone.
I’ve been searching around but haven’t found any review of the Percision Works Mono Ball tension arm bushing. Does anyone have experience with them? They are way cheaper then other Monoballs on the market https://privatelabelmfg.com/products...SABEgINGPD_BwE I’m quite tempting, not sure if I should pull the trigger. |
12-31-2023, 11:56 AM | #3 |
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It appears to not use a sealed bearing which means road debris will clog the bearing over time. I’ve used the BW sealed version on ‘09 and ‘12 e92 M3s for > decade, and f82 M4 for 5+ years with zero issues.
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12-31-2023, 08:12 PM | #5 |
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01-01-2024, 05:03 PM | #6 |
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Had no prior plans to install monoball bushings since I haven’t tracked so far, but was able to purchase set of PLM monoballs from another forum member for a good deal.
No experience with other brands so I can’t compare, but can say positive experience so far as mentioned on this thread: https://www.m3post.com/forums/showthread.php?t=1904365 |
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01-05-2024, 03:18 PM | #7 |
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I bought a set of these for a Spec E9X build I am working on. I threw them on a set of German TRW arms I had on my M3 years before the manfuacturing switch. My M3 got new arms with already pushed in monoballs from a guy that decided not to produce his design. (honestly they are great and I wish he did, i'd buy a set)
Honestly I am not impressed with how easy This PW /PLM monoball went together, it slipped into the control arm too easily imo. With only about 1mm of compression left, after torquing down the bolts that is taken up. But I hope these aren't like ones I heard of 5+ years ago that eventually came loose. Time will tell, eitherway wont be a big deal if have to redo them but i'd probably go with GAS next time. Pics below of them fully installed on the arms
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01-05-2024, 06:05 PM | #8 | |
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Quote:
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01-05-2024, 10:39 PM | #9 |
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01-06-2024, 05:38 PM | #10 |
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Yes retaining compound is for the bore the monoball is pushed into. Apply on both surfaces and push the monoball in. The retaining compound cures to hold the monoball from moving around. Since the monoball is bolted in place there's really no cause to worry. The retaining compound is just an extra layer of safety.
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tdott3942.50 |
01-10-2024, 12:43 PM | #11 | |
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Quote:
Maybe I 'm misreading what you wrote. If you are re-using control arms that previously had monoball bushings, then those arms could have been sanded down when the previous bushings were installed causing a loose fitment due to different tolerances from different manufactures.
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Last edited by Nish90; 01-11-2024 at 08:53 AM.. |
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01-10-2024, 01:38 PM | #12 |
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Received my PLM monoballs last week. Only wanted to report some superficial scrapes through the anodizing on the barrel and the other had a rim ding like it had been dropped on concrete. Maybe seconds, or a return, or just careless handling. This doesn't worry me, but if you are looking for cosmetic perfection, you may be disappointed.
ETA: I don't see any signs of a previous install, btw. I'm not accusing PLM of reselling used gear. |
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01-11-2024, 08:00 AM | #13 | |
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They were used TRW Germany arms, stock bushings.
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Last edited by tdott; 01-11-2024 at 08:34 AM.. |
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