New answers tagged piece-information
They both appear to have the same part ID despite being quite different. Sariel answers most of your questions in The Unofficial LEGO Technic Builder's Guide. toothed half bush with a cutout The second variant, the toothed half bush with a cutout, is exactly what its name implies: a copy of the previous version with part of the axle hole cut ...
Interesting .... brickowl lists the right picture for 4265c while (peeron)[http://www.peeron.com) lists the left picture. This leads me to think that both are interchangeable and that the one in the right picture is a more cost-efficient version of 4265c (using slightly less ABS). Lego Pick-a-Brick also shows the version in the picture on the right.
If you can't sell them making sand castles with them is an option I suppose. I would stick them in the loft for the future though if it were me. Simply because if you ever sell your LEGO boxed sets are always better and command a higher price.
The windscreen you mentioned has been retired, however you can still get it on BrickLink. It is available inexpensively in several colors: http://www.bricklink.com/catalogItem.asp?P=6152 If you want to use a modern version, this wedge is pretty close in shape and is available in current sets: http://www.bricklink.com/catalogItem.asp?P=6153b As a reference, ...
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