Hopefully, these pages/pics out of my manual will help. It does appear to remove the diffy, both side will need to come out/off.
As far as which shaft to get, it say's which shaft for a certain side (whether L or R) in the parts description. I do belive #11 is the one I found on ebay for $100.00. Up to you to decide if you want to trust an aftermarket part here. From checking Case Construction, theirs are $499.00.
I'm guessing that bolt backed out of the ring gear. Possibly, progressively cutting that groove in there. There is to be thread locker on those bolts to prevent that. Whether a PO, or possibly someone else working on it previously missed it, or missed when assembled at the factory.
Is the bolt sheared off even, or flush with the face of the gear..?? I'm thinking it may not be that hard to back on out. This is where a set of left hand drill bits come in handy. Sometimes just drilling will turn them out. Regular bits, and an easy-out should get it. A LOT depends on if, and how much it sideways mushroomed, or distorted the bolt. Most I've dealt with, the shoulder on the bolt is a snug fit, so there actually shouldn't be too much distortion. But there has been some serious hammering going on there. If you do manage to get it out, it should be progressively torqued to a final 55 ft. lbs. Go, 30, 40, then 55 ft. lbs.
Next question is, if the diffy is removed, will a dial indicator be needed to set the backlash in the ring & pinion. It does show it being done on back a ways, but that is completely rebuilding the diffy assy. Just hope you kept all the shims in their proper place..!!
Also note you'll need #12, which is a cup plug. Looks to be $13.75 at Case, & $5.00 aftermarket.
I used the advanced feature to load the pics, and it took me away from the thread, to read back. So will load this so as not to lose it, LOL...




