I have followed this thread and I have removed many tapered drums on both Ford (that goes back a ways) and Chrysler. I have not heard anyone comment on hitting the end of the threaded part or the puller after applying the maximum torque on the dog bone with hammers.
On tough drums I have used a hammer (2 to 3 pounds) to tighten the threaded bolt of the puller just as tight as I can. Several blows on the "dog bone" after it seems extremely tight. (lube the treads on the puller bolt). Then with a10 pound sledge
strike the end of the puller bolt, parallel to the axle, several times. You may have to stop and tighten the bolt with the "dog bone" a second time then strike it again. I have never damaged the rear end spider gears or the wear block inside the rear end and I have never failed to get a drum off. .
One comment: If you heat the drum and then fail to get it loose when it cools it may tighten more than ever. You may have to heat it again the second time you try it. I have never had to heat the drum.
Rolland Westra
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