My plan is to convert the intermediate gear bearings in the transfer case in my WW2 Jeep . The original setup has a 3/4" hardened shaft and caged needle bearings running through the bore of the gear , this setup was a major design flaw , the shaft wears and thus creates a noisy unreliable Jeep. In the 1960s somebody here in Aust. came up with a good conversion, you bore out each end of the gear and use tapered roller bearings , Holden wheel bearings were a perfect fit. My first Jeep had this conversion and it never gave any trouble. Simple washers provide the pre- load. Question is: would this job be better suited to a lathe or a vertical Mill ? Accuracy is paramount.
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