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Just curious, why does the D60 need a case spreader but say a 12 bolt you can tap bearings and shims in with a brass hammer or drift ? Basically would I have been SOL if I hadn't asked here and removed it just to check ?
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The main reason is the sheer massiveness of the casting on the Dana60 axle. The preload of the bearings tries to spread the casting as the carrier is installed. So the bigger casting poses greater resistance to installing the carrier. You don't have to worry about shims though. The D60 doesn't have the thick "external" shims that the GM units use. All of the shims are under the bearings themselves.
The biggest issue with replacing the carrier bearing this is that the new ones will tighten things up........thus making it even harder to get it back in. I generally caution people against messing with differential internals, but since you are dealing with bearings only and keeping used gears, it may be ok. As long as you don't go overboard with it. The thing is.........."While I have it apart" generally means looking at the pinion bearings too. Then you are looking at more shims and oil flinger/deflectors...and more variables in reassembly.
Anyone can get in over their head on this, especially if you find a bad bearing somewhere.
11-26-2006, 02:05 PM
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