[Towertalk] YAESU accessories

[Roger]

The following YAESU accessories are listed in several retailer WEB sites, 
but I found no further detailed explanations, not even in YAESU page. No 
luck searching through usual search engines too. Does anybody have a 
description or drawing or, better yet, a picture?

GS-680U   SELF-ADJ MAST BEARING
GC-048    MAST CLAMP
GL-33     MAST ADJUSTING PLATE for G-450
GA-2500   Tower Shock Absorber Joint
GA-3000   Tower Shock Absorber Joint

TIA
73 de Roger - PY1OL