8 3/4 Thrust Block

There is at least an 1/8" of adjustment on the stock setup. Open diffs have large contact surfaces and are one piece. The funny part is when you see the thrust block piece for a sure grip. It's a lightweight little thing that looks like a stretched out thread spool held together with a roll pin. On top of that, it floats around in the two cross side gear holders shafts (whatever they are supposed to be called). It's one of those things that seems weird but works great.