Another helpful aspect if I can split it is that I can probably use the same boring bar and setting to bore both bearing recesses at front and back without changing anything. Each recess has an inside lip, and the boring bar can't make it through that, but if the cap was removed the tool bit could face up, slide through to the other side, and then replace the cap, and bore the other recess.
I would definitely prefer to do it that way than remove the boring bar from the boring jig setup, or move the tool bit in and out to cut both recesses.