So I was working on the M3 wagon. On the M3 coupe I machined/welded up my own adjustable end link, which reuses the bushing from the stock end link. Probably took me 8 hours to make, and it has an unsealed bearing that will inevitably get noisy and need to be replaced one some interval.
... and I was working up to doing it again for the wagon, to eliminate sway preload on it.
Then I noticed the the bracket that mounts the sway could just be spacered off the control arm with some washers. You can go either direction, just by spacering one side, vs the other. So long as your ride heights are reasonably the same left/right, this should be plenty to dial out the preload.
I'm sure other people have thought of/done this over the years, but I've never heard of it or seen anyone do it-- and seems like it would be useful to many people.
If you have a springs setup, goes well with using OE BMW rear spring pads ($12 each, only one should be required) to corner balance your car for nearly free (which I have also done on the M3 wagon).
5mm # 33 53 1 136 385
7.5mm # 33 53 1 136 386
9mm # 33 53 1 127 224
10mm # 33 53 1 136 387
I have no free trick for preload up front, but turner sells a really nice stock style sealed joint adjustable end link:
https://www.turnermotorsport.com/p-3...s-pair/?pdk=Ag
Only one is needed, so save the second for when the first wears out
... and I was working up to doing it again for the wagon, to eliminate sway preload on it.
Then I noticed the the bracket that mounts the sway could just be spacered off the control arm with some washers. You can go either direction, just by spacering one side, vs the other. So long as your ride heights are reasonably the same left/right, this should be plenty to dial out the preload.
I'm sure other people have thought of/done this over the years, but I've never heard of it or seen anyone do it-- and seems like it would be useful to many people.
If you have a springs setup, goes well with using OE BMW rear spring pads ($12 each, only one should be required) to corner balance your car for nearly free (which I have also done on the M3 wagon).
5mm # 33 53 1 136 385
7.5mm # 33 53 1 136 386
9mm # 33 53 1 127 224
10mm # 33 53 1 136 387
I have no free trick for preload up front, but turner sells a really nice stock style sealed joint adjustable end link:
https://www.turnermotorsport.com/p-3...s-pair/?pdk=Ag
Only one is needed, so save the second for when the first wears out
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