The spec is 25 newton meters which is only 18 pounds. You are also supposed to tighten lower shock nuts with the wheels off the ground and tighten the top with the wheels down. My front bilsteins only came with one self locking nut for the top.

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63 220S W111
76 300D W115
2013 VW JSW TDI M6

previously-
73 280 SEL 4.5
86 300E 5 speed
2010 VW Jetta TDI M6