go to www.************************ and request a catalog for the W126 chassis. They have excellent diagrams, but alot of their prices are a little high, plus they are in Calif. so shipping is a big factor for people on the East coast like myself.
OK I see that you are also in Calif., so shipping expensive isn't realy an issue.

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1999 MB SL500 (110,000 mi)
2004 Volvo V70 2.5T (220,000 mi)
2014 Tesla Model S 85 (136,000 mi)
MBCA member