Hi I'm building a solar tracker for my panels and I'm needing some help finding a clamp to fit a First Solar Tracker Linear Actuator that I purchased off of ebay last week. It didn't come with the clamp that bolts around the tube. The tube of the actuator is 2 1/4" o.d. All I can find is clamps that fit 2" od actuators. I have looked hi and low and haven't been unable to locate a clamp that fits a 2 1/4" tube.