I'm soon to be replacing rear drums and shoes, and that means new wheel bearing races going into the new drums.  I've seen the bearing guide in the FAQ and read Haynes.

 

I have also seen guides online where people put the races in a freezer, and heat the drum bearing hole with a heat gun/hair dryer or put the drum in an oven.  The thermal contraction/expansion negates the interference fit, so the races just drop in and then when all returns to normal temp its nice and tight.

 

Has anyone had any joy, or horror, with the thermal method? 

theyre not really that tight , you can tap them in with a hammer easily

 

putting the races in a freezer will make it a little easier , but i wouldnt worry too much its not a hard job

I used that method on my 6N1 and while the bearing didn't just drop into the drum it certainly didn't need much of a tap with a hammer and a suitable sized socket as a spacer so only the outer edge of the bearing  took the pressure