It takes just a moment to join our fantastic communityRegister
Whats with packing bearings with grease ???Aloha JC fam, I'm in need of some advice before I lose my mind!
Long story short I've done a disc brake conversion on my VH (VL diff) and she's chewed through 3, maybe 4 rear axle bearings almost instantly and it's driving me nuts!
Need some help identifying what's causing this issue and I'm sure someone here will know.
Here's the run-down:
- I bought and installed a low km (100k) drum-brake, 25-spline VL diff (Borg Warner)
- Drove around with the drums for a while, everything was great.
- Backing plates and calipers taken from a VR/VS ute
- Bought new disc brake bearings for VL (with the different oil seal to the drum ones)
- Pulled drums off, axles out and had the new bearings pressed onto the axles by local Ultra Tune
- I installed the axles with fresh bearings, new backing plates, new rotors etc
Drove it round the local streets for a day or two and I then heard what sounded like disc rotor rubbing on something - up on jacks, found one axle had too much end float and the rotor was touching the caliper and not the pad anymore - essentially the rotor was no longer 'central' to the caliper
Pulled it all apart and found that the bearing cone's outer "rib ring" had sheared/broken off, allowing some axle movement. (The rib ring is the outer edge of the cone you can see that 'sticks out' from the bearing cup when viewed side-on out of the car)
Shortly after, the other side did the same thing. Sent axles off to my mechanic to do it all again with new bearings, installed them and at least one of them has done it again.. Exact same symptom.. This one didn't even last a 2km test drive around the block...
You can see below, the ring has ridden up the rollers a few mm - this is the furthest I've seen it happen..