The Heidts Superide is a good front end, and I have installed several over the years. The one thing I like about the Mustang II is that with stock a-arms you have rubber bushings instead of urethane on the Superide. The rubber lasts much longer and doesn't require lubrication. They transmit less noise to the chassis too. Mustang II usually is a cheaper route to go. Heidts used to sell a Mustang II kit that wasn't finish ground to save a few bucks. That is the one I used most often.