2 axle seals at 60ea. and you'll double your investment. Sounds like something I would do.I did find a Sterling 10.25 on Craigslist for $150. It's in a 1990 F250 so its the early style axle seals and short pinion, but it's complete drum to drum and it's got the right gears in it (3.55).
I'm going to check it out Saturday.
Get the Buick going; fall is here and cold air makes horsepower. Let's go smoke some tires!