this bolt is difficult to get to.any tips.i installed new shocks and on first one on front i was not able to fully tighten inner 10mm ,but on second i realized that if i moved shock before inserting to frame above i could get at it,but when i went back to first shock to repeat the process i couldnt pull shock down from frame-too much pressure as its new.so any special sockets whatever that anyone has had success accessing inner 10 mm bolt

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95 e320,87 sdl,79 300sd

On a 123 or 126 a thin walled 10mm socket works well.

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83 SD

84 CD

I used a box end wrench to install them on my 79SD. Not quick and easy, but doable.

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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13