yes this was in the manual however it is verry lose now and feels sandy and the manual said sandy was not good I am just a bit confused as i said i new to the whole ball diff thing. i heard the diff sliping when i punched the throtle and right awayt stoped driving it and tore town the trainy to see what the problem was so the diff should be ok still i would think. unfortunatly sence i got my truck ARR everything was prebuilt and there is text on ajustment but nothing in tearing down the diff and no instruction to build it . anyway i will try that agan sence oi already tore it down a couple times should i clean it all off and put new grease in it and what not just to make sure there is not dirt or anng like that?