I purchased a thumb from Extreme Metal Products to install on my B7800 Kubota with BH75 hoe. The thumb worked great with no slippage or sloppyness when attached on the backhoe arm. I have read about other thumbs slidding along arm and breaking the hydrolic fitting on the top ram, but I don't see anyway this thumb will cause any problems. The quality workmanship is great ! I'm been building rock walls on my property which would be very difficult with out a thumb attached. The thumb isn't shown on their web site yet, but give them a call. Pictures attached.