Figured I might as well posted this up in here as well so the tech is here for everyone.
Last summer after havoc I found Neil at western Canadian Rockwell had the Meritor RF611-19's available for a pretty good price. About 5 years ago I came across a fellow on pirate that took these same diffs and adapted the planetary to a spidertrax pro 60 housing, and ever since I've been hooked on using these.
Anyway the reason for not using the meritor housing, comes down to weight and gear ratios. I want a finished weight of 750lbs, and gear ratios, I'm aiming for a sub 6:1 range (meritors are 6:17 or so), with the ability to change ratios for different applications if i need to. The 9" will be a spool using the big 3.250 bearing case, and I'll either have the spool wire edm'd to match the meritor axles, or have the meritor axles resplined to the 35spline 9" spools i have. Right now I'm going to go with having the spool wire edm'd, as if that part breaks replacement will be quicker & easier than the meritor axles.
Anyway I was able to tear into the first diff last night. Put the new work bench to good use too, glad | built it so frickin heavy. Anyway, the kingpin bolts are installed insanely tight, 1" strong arm and 6 foot breaker bar and jumping on it to break the buggers loose (why I was glad to have the heavy ass bench.
Setting up to dismantle the knuckles:
King pin caps coming off: