Which tool is not recommended to be used to separate tapered steering components because it can do harm?

The correct answer is the pickle fork, as it is known to potentially cause damage when separating tapered steering components. A pickle fork is designed to wedge between components to create separation, which can lead to tearing or damaging the rubber boots on joints such as tie rods or ball joints. This damage can compromise the integrity of the component, leading to future failure and the need for replacement.

In contrast, tools like a taper breaker are specifically engineered to separate tapered components safely without causing additional harm. Tie rod removal pullers are designed for the job without tearing or damaging surrounding components. Using two hammers can effectively help to separate parts without the risk of puncturing or tearing protective coverings, making them a safer choice compared to a pickle fork.