I had a very easy time with one meyle mount. The second one would not seat no matter what. Finally got the bolt in but there was a decent (1/4”) gap. After 80 miles of driving it’s more like 1/8”.

Mine was the same, D/S was much easier than P/S.

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Current Diesels:
1981 240D (73K)
1982 300CD (169k)
1985 190D (169k)
1991 350SD (113k)
1991 350SD (206k)
1991 300D (228k)
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Past Diesels:
1983 300D (228K)
1985 300D (233K)