Need a Part # for crush sleeve eliminator kit

Hey guys,

its coming time for me to rebuild my rearend soon (8-3/4 489 case) and i wanted to pick up a crush sleeve eliminator kit...I know dr. diff sells a yukon one, but i cant seem to find the part number for it anywhere (ive checked randys, summit, and the yukon website)...if anybody knows what the part number for that particular crush sleeve eliminator kit is, or for a different one, please let me know...i would greatly appreciate it