You may be able to use the rear diff from a w116 450se/sel. That's a 2.65. The 617.952 can push a 2.47 gear, you will need to downshift manually if you need to pass or climb a grade.

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1987 VW Jetta Mk II - Daily Driver
1992 W201 2.3 - sold
1985 W126 380se - sold
1985 W123 OM617.952 - sold
1981 W123 OM617.912 - sold
1986 W201 2.3 - sold
1979 W123 OM 617.912 - sold