[Milsurplus] [MRCA] ARB tuning shaft wanted

[Mike Hanz]

  On 9/28/2010 6:33 AM, D. Platt wrote:
> I'm still trying to find a tuning shaft assy for my ARB.  Any length
> will be fine, even junker with problems.  The ARB uses the larger of the
> two types of flex cables.  I'm not certain, but maybe standard speedo or
> tach shafts with the 5/8" couplings might be usable by splicing
> reclaimed spline drive ends on to the inner shaft?  Has anyone ever
> tried this?  It looks like 5/8" is the correct diameter/

Yes it is.....*however*... :-)
.
There is more than meets the eye here.  Some of us have discovered that 
the ARB (and other Bendix drive components) used a slightly different 
thread from the normal speedometer drive nuts.  They will *not* 
interchange without cross threading, even though the internal coupling 
spline is identical.  It's a shame, as I have seen a number of very nice 
6" long cables that are just right for a ham installation but have the 
wrong thread on the nuts. :'(   I posted a bit more on the issue at 
http://aafradio.org/garajmahal/flex_drive_cables.html
.
I'll try to add more to that link on the subject in the next few weeks, 
as the subject seems to come up frequently.

73,
Mike