Bilstein install ? - Type 44, rear

Dave C. conner at
Sun Jul 20 20:52:19 EDT 2003

Patient is an 87 5ktq w/ recent complete suspension rebuild incl Bilstein
struts/shocks and Eibach springs.  Test drive reveals a rattle in rear end
when going over even slight bumps.  I've checked torque on all fasteners,
emptied the trunk of everything that might rattle, etc.  The remaining
suspect is a loose top nut on the rear Bilsteins.  It isn't clear to me how
tight this nut is supposed to be.
Bentley says 15 ft/lbs for the '87.
The Bentley for 89 and newer says 22 ft/lbs.

The instruction sheet provided with the Bilstein shock says  "nut torque 37
+7.5 ft lb"
What does this mean?  If it means 42.5 ft lbs, why doesn't it just say that?
42.5 ft lbs sounds unreasonably high, and I'm afraid to go there.
On the other hand, 7.5 sounds unreasonably low.

The initial install was torqued to 15 ft lbs in accordance with Bentley
Does anyone know what this torque should be?

Has anyone actually installed these things with torque of 42.5 ft lbs?

BTW ... these nuts are tightened similar to the front struts, except the
fastener sizes are different.  They require a 17 mm deep socket with the
side cut out and holding the shaft with a 5 mm hex key.

Dave C.

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