Well, it took awhile to get the project photo ready but here are the upgraded version using real forktruck forks as suggested. Tubing for the frame is 2x4 with a 3/16 wall. The 1.5 inch round to hold the forks is definitely overkill using a cold rolled round. Getting the holes lined up for the bar to pass through was the trickiest part. It has been tested to loader capacity building 35 ft. of stone wall using various sized native NE field stone before it went into the paint shop. I don't like to mess up a fresh paint job doing repairs. Forks were factory rated at 1500 lbs. which is twice my loader lift capacity. Its amazing the size rock that can be skidded backward lifting just one end. No damage showing yet, other than the white impact marks from flipping the rocks back against the carriage. Forks are particularly handy for flipping rock over. As they are sliding off the end of the forks, you can see the critical point to roll back the carriage (raising the tips of the forks) to flip or toss the rock. This is possible only by sound or feel with a bucket, with forks you can see what's going on.