I had both the lakewood loop and the jegs one with the round loop both were a royal pain to install and there is not much clearance for the driveshaft. I also had to remove the driveshaft to install them. The granatelli loop is easy to install and gives you plenty of clearance. It's a little pricey but it's well worth it.
http://www.jegs.com/i/Granatelli/467/500002/10002/-1