Video - Rear Axle Wobble

[OVCobra]

Todd
Try the same thing on the other side for comparison. Also check the rotor the same way. The wobble on the rotors seemed to be a lot more than the numbers you measured on the axle flange...maybe just a bad rotor?

Dave

[Arrowhead]

Todd
The wobble on the rotors seemed to be a lot more than the numbers you measured on the axle flange

But the rotors are twice as large as the hubs so the wobble is multiplied.

Personally I think you are going though more grief by trouble shooting and analyzing than just putting in a new axle. It's not worth the headache, just do it and be done with it.

[CobraFan460]

Thanks guys. Due to work, I won't be able to get back to this problem until next week. I'll chime back in then.

Thanks,
Todd

[CobraFan460]

I was able to get some time on the cobra and have a few more measurements and another question. Bottom line concerning the new measurements – the data shows a problem with the driver side axle.

I measured the run-out of both wheels and both rotors mounted to the passenger side axle since that side is ok.

Pass tire = .004” H(orizontal motion) – measured at bead face
Pass tire = .028” V(ertical motion) – measured on inside wheel wall
Driver tire = .007” H – measured at bead face
Driver tire = .009” V – measured on inside wheel wall
Pass rotor = .003” H – measured at un-used pad surface
Pass rotor = .012” V – measured at pad rotor edge
Driver rotor = .002” H – measured at un-used pad surface
Driver rotor = .007” V – measured at pad rotor edge
Pass axle flange = .002” H – measured on flange face
Pass axle flange = .003” V – measured on flange edge

If I took my measurements at acceptable locations, the data indicates I had the good wheel and rotor mounted on the bad axle which probably helped to minimize the wobble. Next, I was going to swap the axles to see if the problem followed the driver side axle but was unable – which brings me to the question:

Isn’t the block inside the diff (held in by one small bolt) supposed to easily pull out or slip back into the diff? And is it’s only purpose is to take up the space between the axle ends?
I snapped off the end of a screwdriver trying to pry the block out and it absolutely will not budge. Any ideas or tips to try to help remove it?

Thanks,
Todd