What is the reason for the left front shock mount failures on 90's buses?

[Eric Perplies]

I do believe that one of the issues with the failure on the shock mounts is the
quality/mass of the steel in the frame of the coach. The center of the upper
left shock mount is about 2"- 3" from the edge of the modestly thick frame. The
webs or gussets on my coach had to be turned in the "hold water" position to
keep them from projecting above the frame member. I didn't measure the
thickness of the frame steel but I would guess it's 1/4" +/-. But even if the
problem is the location/thickness of the upper mount it doesn't answer the
question about why this failure has ALWAYS happened on the left shock mount.

The right shock mount is built the same way. The right shock mount should be
extended even more because of the camber in the road coupled with the leveling
system on the bus. Finally, road damage is typically much more prevalent on the
right side of the road. What's up with the left side??

Just too make my previous discussion complete. (My post on the Don's shock
mount post 'disappeared'. A regular occurrence for me on this site.) When CCW
repaired my upper shock mount they welded a 1/2" x 6" x 8" plate to the damaged
area on my frame. They drilled a hole in the plate to accommodate the air line.
They were on the telephone a lot with Ft Valley engineers discussing the
problem. It took them 4 days of telephone conversations before they started the
work. But it was very difficult to get CCW to relate what there discussions
were except to say "we were trying to find out from Ft Valley how to repair the
problem."

Eric Perplies
96' 42' WBWL