I finally got a chance to find, fix, and resize the pics of my skid bar problem. First, here's what the right skid bar looked like in July of '07. Note that the back side is bent just a little bit:
By the end of August, the skid bar was completely collapsed:
And here is the finished replacement caster and mounting plate:
I haven't towed the trailer much this year, yet. I did hook up and tow it around the block to a level place so that I could determine what adjustments were needed to the ball height with the new TV. Turns out the trailer was nose high by about 4". When I went to back the rig into my driveway with the nose high, the rear casters really earned their keep. I installed a deep drop shank in place of the standard Reese adjustable shank and the trailer now sits level. I think the casters will still touch when parking in our very sloped driveway, but not to the exent that they did on my test tow.
'12 F250 4x4 Super Duty PowerStroke 6.7 diesel
2011 to present: '11 Cougar 326MKS
1999 to 2011: '99 Sunline T-2453
Amateur Radio kd2iat monitoring 146.52