Date:         Tue, 2 Jun 2015 07:31:27 -0700

Alistair Bell typed:

Exact length is the important part?
How can you state an exact length without giving tolerances? 
If someone was to measure their spacer to be 42.7 mm then is that spacer out of spec?
And does the Bentley manual specific wear limits?

------------------------
******************Edited for specification accuracy************
Alistair,

I took the liberty to post this in the original thread verses the Digest of Frank's post.

The Spacer-sleeve part in the rear wheel bearing housing shown in the Bentley pg 42.4 .
Length is omitted and no tolerances are printed. What is printed is the "thickness" : 5.4 mm.
A bizarre specification to list?  What does this tell? Has the spacer been worn thin??
Over squished and thus thicker? I dunno..:-(    A Bentley mystery.

Frank ferreted out the length of the spacer from his secret sources and mystery friends..
Meaning, I do not have a clue where Frank sourced the length specification.
I'm assuming (not always safe to do here) he or others measured new OEM Spacers and recorded the measurements.

What Frank  posted: Length 42.8 mm / 1.68"  (edited for accuracy)
no tolerances given..

** sometime between 8 years ago when Frank originally posted the length as 41.8mm.. 
   Current specification posted on Franks web site is now: 42.8 mm� **

On his rock off the West coast

Phil z.