Set up my first 8 3/4 and must ask what you say about the outcome pattern. Facts all new bearings, new Dr d gearset, new Arp bolts on used cone & 489 housing. Lash 0.007 Moving piniong torque 17, bolts to spec etc. We started setting up the pinion depth by ingraved 2.770 but we found out that was way out on pattern. Started strictly shim by pattern...started with a 30shim now it start look.something. From there we went up and down on shims but we just got it worse. So the grand final.now is a 33shim. I did reshim about 15 times phuu
For piniong shim had to go out/in we machined polished a brand new bearing..good to have as nr 2 diff is on the works. Any comment on pattern is welcome.
Thanks Michael