Yeah the D70 is pretty much a slightly bigger version of the D60, it might have been because of the 3.54 gears, your results might vary. It wasn't the end of the world, just an extra few steps I had to do to install, no bearing or gear lash setup just remove the diff, pull the ring gear, install the locker then put ring gear, bearing races and shims back in the same place they came out of.