In my opinion, it seems to be a decent quality product does the job it advertises. Unfortunately, it's a cleaver solution to what really shouldn't be a problem. Welding on perches is a simple job for most anyone to accomplish (just find a local shop), and if you're going SOA, you probably shouldn't be using a Dana 35 anyway. Now, if they could invent a bolt-in application for other axles (cough, 8.8, cough) then that would be something. It's a good idea, but falls a bit short on practicality (in my humble opinion of course).