And Marlin sells the bearing kit for e-lockers too - they get them from Randy's Ring and Pinion if I'm not mistaken, but are a little cheaper through Marlin.  Also, if you get a R&P set that is a Yukon brand, make sure you take off the coating on the backside of the ring gear before you try to install it or it won't sit on the carrier mounting surface flush.  The guy that did my gears had a hard time figuring that one out.  You also might want to get the small solid pinion spacer too....Just my