To replace the Maytag Neptune rear shell bearings first order the seal and bearings. They will fit MAH 3000 or 4000 washers.
The bearings can be ordered from this web site (http://www.vbx.com/PROD/kit7731) SKF numbers (large bearing SKF6207- Sorry for the partial duplicate, dunno how to remove!
You can also purchase the bearing and seal kit from NEPTUNE BEARING. You also get an ebook that has tips for removing the failed bearings and inserting the new ones. You can expect this job to take 2 - 6 hours depending on your tools and machanical ability. There is an easier way… the site mentioned above offers a special tool kit rental that includes the bearings and 12002022 seal kit and it also includes a 14 minutes DVD that shows you how to disassemble the stand alone front loader, replace bearings and install the seal kit. Some folks have stated the DVD is the best tool in the box…
Also, don’t forget to replace your door latch wax motor… See MAYTAG NEPTUNE WASHER R11 Q6 REPAIR KIT + 12002535 WAX MOTOR for a funny song that explains the faulty door latch wax motor issue. Keep in mind that if you have an earlier MAH3000, you have (3) of those darlings you should proactively replace.