I know you are just kidding a little (maybe). I put mine in years ago because I drag raced a little and didn't want to lose an axle. I had stock axles due to poor funding. I worked as a mechanic for a few years and I just think the Ford style bearing is better. I saw a lot of worn axles from the GM roller bearing riding on them. When I put my big brakes on I figured the stock 12-bolt bearings could be improved with the Ford (or other) replacement. I really enjoyed working with the Torino ends and it seemed to make a good setup. I haven't seen any posts to confirm it but it seems the GM style roller bearing would also lead to more brake knock-back because the axles have a little more end play. Those are my simple reasons.
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