Running rear wheel bearings in diff oil. (1 Viewer)

[Track Rat]

I switched rear bearings to oil about 2,500 miles ago; no leaks and everything's still tight. I really like to use of cap screws too as the cone washers dont require a brass drift to coax them out. Replaced the front studs with cap screws too.

Sorry if I wasn't clear; I'm still using the OEM cone washers and flat washers, but with CL 12.9 cap screws instead of OEM studs. Fronts are M8 -1.25 x 30 and rears are 1.25 x 28.5 (+/-). Disassembly is easier ...and they look kinda techie.

 

[Fairgame]

I put a 80 series rear axle in the rear of my fj40 a few years ago. I broke a left rear axle shaft last year. My fj40 has 35" tires and a 2f engine. I used to run cheap aftermarket u-joints so that the ujoints were the weak link. I replaced the ujoints with factory ones and now I guess the axle shafts are the weak link. I was trying to crawl up a rock and I was more bound up than I thought. The scenario of running without the shafts in the hub would be if I damaged the differential somehow. I've never damaged the differential on this axle so far.
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Interesting and only experienced this with older model cruisers. But then again we do not do much rock climbing!