Ford 7.5 4.10 gears set-up help

[jcwilliams]

I'm looking for a Lil help.
I've got a new ring and pinion with all new bearings and new bearings on the carrier as well.
I've got the pinion preload at 19-20 spec calls for 14-19 with a .025 pinion shim (OE depth)
Back lash at 11 spec is 12-16
And here's my pattern
Thanks in advance

 

[4x4junkie]

Hard to really see what's going on with the pattern on that (maybe pinion too shallow, but can't tell for sure).

Try rotating the carrier with a wrench on a ring gear bolt to get your pattern (putting some resistance on the pinion flange with your hand if necessary). This usually creates a higher-contrast pattern than turning it by the pinion.