Largest diameter is about 15 inches for the bolt flange.

Here is what I have come up with so far. The flat lower sides
can be used to bolt on your fabricated rubber bushing brackets
of choice. This give a maximum amount of flexibility as it
seems nobody can agree on just how wide they want their rubber
bushings to be. It is rather more complicate inside as various
and assorted ribs are required to provide support for Tracy's
PSRU.

What does everybody think?

Paul Lamar

Paul,
Couldn't you just incorporate the mounting brackets (for the Majority users)
in such a way that they could be easily removed (cut back) for those
requiring closer mounting points.
I just feel a single piece unit will be stiffer and stronger.
George (down under)

I agree George but there are some other factors going on here.
Mainly pattern issues. It is tough to put efficient beams out
there and still keep the pattern and casting cost in sight.
The bolt on pieces are almost identical to what Perry is using.
These are cheap and easy to make.

Paul Lamar
 
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