It was one of the first "bigger" jobs when I got my 300SE, I remember it as no fun. The capture nuts are a horrible design, I had to saw one off the old ones as it was broken and the new one I broke again when I reinstalled it. Used Lemforder as well. Kent Bergsma sells a modified set, that has some extra weld points.

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1979 Black on Black, 300CD (sold), 1990 Black 300SE, Silver 1989 Volvo 780, 1988 300CE (vanished by the hands of a girlfriend), 1992 300CE (Rescue).