Didn't know this was an option. No this guy takes care of his cars. He uses higher priced motor oils unsure what he uses but he's mention they run $8+ per quart. Might be over kill in my opinion but to each his own. Also used good quality gear oil. He had tried Redline and I believe he was running Royal Purple Gear oil when it blew. I'm thinking previous owners had more to do with it blowin up then. Glad to see these diffs can handle. I have a spare diff in the shed just incase, my worry was the rear end locking up at high speeds.
Does anybody know how much hp NA diffs are rated at. Thanks