What do I use for rear axles for rear disc brake conversion?

txstang84 said
Pretty sure all the A body 8 3/4s had the same length axles-you should be able to pick up a set new from Dr Diff for like $300 with BBP...

I looked on summit and they had 27.68" and 28. Also they had 8 3/4 with oem drums, then listed 8 3/4 drums only. Im sure dr diff can steer me in the correct direction then?