No way I'm gonna pay $89.99 for a stupid piece of all thread and washers to press bearings into the swingarm. Here's a cheaper way that worked just as good:
Buy a 12" piece of 3/8" all thread, some 1 1/2 washers, 2 nuts, and the appropriate size socket (19mm for a honda xr400.)
I put a mark on the socket for the appropriate depth to press the bearing. (5.5mm in this case.) Make sure the socket is lined up, and start cranking on each nut! Here you can see the bearing next to the socket going in:
That's all there is to it! i pressed all 4 swingarm bearings in about 45 minutes. No freezing, heating, or even greasing/lubing! And the best part is...I can spend my $90 on something else!!