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My intention is to NOT use a rear support. The way I see it, the worse that can happen is I bend the pivot, and I bet that won't happen. If it does I'll copy Denny's pin in a stronger material like heat treated 4130.
Thanks for the call today and the valuable feedback. I greatly value your opinion and suggestions.
After we spoke, I unbolted the rear brace....just to see if I could get any movement....I got a very , very slight bit (could have been my imagination, but I do not think so).
If you wanted to re-sleeve the K....as you suggested with a larger , thicker piece of tubing (perhaps chromoly)....I could see about swapping your pivot shafts. The tapered sleeve in the K limits the size....and as they say bigger is always better.
In the meantime, I am a fan of the bolt on brace.
I do have the original.....smaller rear brace (pictured in the thread) if interested.