There are other steering box replacement pages on the Web. You may wish to check out Jon Booker's 1st Gen FAQ . Also, check out Paul Mullen's web site for three good articles on steering box repair and maintenance. This page is based on comments to the '84 Mazda RX-7 Shop Manual. As a matter of convention, instructions from the shop manual will be in italics.
Comments are in normal print.
Removing Steering Gear 1. Disconnect the battery at the negative cable. Remove the horn cap and steering wheel. The horn cap will pry off, even though it feels a little stiff. It's just a hard rubber disc that secures to the wheel like a great big coat-button.