The torsion bars have a round cross-section all along their length. There are no holes, slots, flat spots, pins, or other retaining provisions. In other words, they are held on by friction, so when you retighten the bolts, you must be pretty torque-y about it. The one thing missing from Dick's procedure, although it should be obvious in reading it, is that the shell should be open before you loosen the bolts. This "untwists" the torsion bars, taking the pressure off the support arms.
Bill
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