Mark,

If you end up dropping the diff to replace the complete axle assembly (half shaft+jack shaft), make sure to get new seals for the axle shafts. When I replaced mine (the third time ), I reused the old seals and got a leak. It was awful having to drop the entire diff again to replace one seal. Honestly, I wouldn't drop the diff if the green cups are in good shape. The OEM green cups will be stronger than these aftermarket sets. In this case, just make sure the new CVs are the same size as the OEM CVs.