I broke mine in half! and one of the halves was cannibalized by the T-Case and found with on the magnet. Anybody have any idea where you can pick these up? I found from somewhere else that the PN was J6134488, but I don't know where to find it, been looking with the help of Mr. Google and I haven't been lucky yet.
You're one number off on that part number. Instead of J6
134488 it's J8
134488, "Ring, Bearing Retainer". Actually they show 2 of them with the same part number. There's one up against the outside of the bearing and another on the outside of the rear seal. These look like the smaller rings which go on the shaft.
There's also a much larger retaining ring which must snap into the case. It's between the rear bearing and seal referred to as a "Ring, Rear Bearing I.D. Retaining".
So there is a snap ring, but I believe there are additional rings that hold the bearings in place, I saw somewhere else that they were referred to as lock-rings.
The snap ring has eyelets and fits into a groove on the hole the shaft is in, however these lock rings are seated on the shaft and sit against the rear bearing.
Regardless if they're "snap rings" or "lock rings" it's difficult to tell which is which on the parts list since they're all listed as "Rings, Retainer". And the individual rings on the parts diagram are too small to see if there's holes in the ends of the rings.
Are these rings for your 2000 XJ NP242 transfer case? The reason I ask is I'm using the old 94-96 ZJ parts list diagram (21T-210) and not sure if they would have changed anything on the 242 after 4+ years? It also list the part number of the transfer case some of these retaining rings are used for. Maybe your newer TC isn't even included in these OE case numbers but could be the same.
Note: on that diagram #33 are the smaller retaining rings I posted earlier while #37 is the larger retaining ring. Good luck!