a body rearend question

The only problem with redrilled axles is that you HAVE to use the A body backing plates and drums. That means that the DRUMs have to be redrilled also and every time you replace the drums you would have to have them redrilled.

You can now get new A Body BBP pattern axles ready to bolt in for $225-$350 from several suppliers. Used ones are even cheaper. I've picked up more than one set at swap meets for less than $100. By the time you cut yours and put new bearings on them and run all over town, used axles may be a better option.

Another option is to use the entire B body rear in your A body. If it's a 65-70 B body it's only about and 1 1/2 -1 3/4 inches wider on each side (the 65-67 is even slightly more narrow)

The A body spring seats are 43 inches center to center and the B body is 44 inches. Some people move the seats in a half inch, I just pull the leaf springs sideways and the rear bolts in place.

The wider rear gives you more space from the drum to the leaf spring, so negative offset wheels work well on that swap.

Whichever way you choose, each has it's advantages and problems.