Thread: Is My Diff Broken

Could be just an axle.?

most likely the axle unless the center pin has gone which is unlikely as it hasnt thrown metal out the front of the housing yet.

I can assure you it won't be a half shaft, if its a half shaft you won't get any movement of the wheels across the axle like that. I would be thinking that on the D2 axle it is the hemisphere, and of that part it will more than likely be the planetary gears. That said, if you've broken the planetary gears I would also bet that if you have standard half shafts that they will also be twisted and need replacing.

Agree. And with the noises you are describing it is suggesting Spider gears. They are the weakest point in the D2 drivetrain.

Drop that diff out and clean the inside of the housing, wash it out with kero and then by using a powerful magnet gather any of the minute metal particles left from the disintegrating parts.

Using your peepers, check out the diff centre for any trophies for the den wall and find your self another diff.

I would now grab another diff centre from a low K wreck and have a Tru Trac fitted, making the most out of that time the bus is off the road.

I am reasonably sure that the rear diffs for the D2 are the same as the D1's, 1994 onwards, from the time when they went to fine spline axles and started using the rubber uni joint.
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Originally Posted by Blknight.aus

most likely the axle unless the center pin has gone which is unlikely as it hasnt thrown metal out the front of the housing yet.

As Arthur stated if D1 & D2 diffs are the same, it is a good posibility (from personal expeirence )is a broken cross shaft. I did not do any other damage. Mine broke on take off.

D1 and D2 diffs are not exactly the same. The hemisphere has been changed so the cross pins are mounted differently and in a way that reduces the stress in them, which is why D2s tend to not break the cross pin like other rover type diffs, but do tear apart he planetary (spider) gears instead.

I'd just have an alternate aftermarket hemisphere fitted also such as a locker or ATB. They're probably all stronger than standard.

Originally Posted by Slunnie

D1 and D2 diffs are not exactly the same. The hemisphere has been changed so the cross pins are mounted differently -----

I will have a look at the two rear diff centres I have in my workshop tomorrow,there is one each from a D1 and D2.

If you remove the cage and fit a locking centre it shouldn't matter then whether it's from a D1 or D2 ?
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