I was just replacing the lower control arm bushings and is seems that the hole in the lca for the bushing is oval, and not round. Is this supposed to be circular or do I need a new control arm. Or would there be issues if I use this as is, such as accelerated bushing wear.

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1985 300SD

I think it should be oval, take a look at your new bushings. I hope you marked the orientation of the eccentric bolt, otherwise put it in the middle for re-adjustment.

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1979 240D- 316K miles - VGT Turbo, Intercooler, Stick Shift, Many Other Mods - Daily Driver

1982 300SD - 232K miles - Wife's Daily Driver

1986 560SL - Wife's red speed machine