Pitman Arm Compatibility

Since your K frame came out of a '74 slant 6 with manual steering and you kept the steering box, you would need a Moog K7075 Pitman arm for manual steering. Don't pay attention to the pictures of parts you see online. They are pictures of "representative parts and the actual part may differ"...

Almost forgot the important part. Welcome to the site and don't hesitate to ask questions. You may even get an answer if the right people see your post. Sure wish memike was here for the howdy stuff...