A little late, but I get all my rear axle stuff from Cass Eslick. "DrDiff" on moparts. best prices I've found and great guy to deal with. It's a bit cheaper even with shipping to CT from Montana than even my local shops I get discounts at.
Dr. Diff's a good guy to deal with. I got all the carrier bearings, shims, sure grip rebuild parts, and green bearings from him for my 741. Oh, and a different yoke too because the spline count was different from stock to Gear Motive.