I don't think there is justification in the price difference, it's just different inhouse processing. I knew Bob Strange in the early 70's when we were both in the machine shop business in the Chgo area. He's been making parts a long time, and in fact i would stack his parts against anyone's. also if you notice he also has a thicker flange on his new axles. I got 35's in my Malibu, it used to have a 1000 hp B/Blk now a 600 hp s/blk. It weighs over 3200lbs with driver.
JMO
Zip.